Tuesday, August 24, 2010

What is the difference between controlled variables, independdent and dependent variables?

Controlled variable = One that you are able to keep constant throughout your experiment that would otherwise effect your results.





Uncontrolled = A variable that could effect your results but you have little to no ability to control it.





Independant variable = The variable that you will be changing or allowing to change in order to get your results





Dependant variable = The variable that you are actually recording. The whole point of your experiment.








For example if I was measuring how many rabbits there were on three differant fields. The different fields would be the independant variables and the number of rabbits would be my dependant variable.What is the difference between controlled variables, independdent and dependent variables?
In an experiment, the experimenter wants to test ONE thing; this is the independent variable. The response, which depends on changing the independent variable, is the dependent variable. A controlled variable is anything else which may change during an experiment, but the experimenter wants to remain constant.





For example, consider an experiment to determine the effect of a new fertilizer on making a plant grow taller. The INDEPENDENT VARIABLE is the presence of the fertilizer; that is the variable controlled by the experimenter. The DEPENDENT VARIABLE is the height of the plants with or without the fertilizer, because it dependsd on the independent variable. The CONTROLLED VARIABLES would be the amount of sunlight on the plants, the amount of water, the type of soil, etc.,What is the difference between controlled variables, independdent and dependent variables?
The Independent part is what you, the experimenter, changes or enacts in order to do your experiment. The dependent variable is what changes when the independent variable changes

Why do need to control some variables?

Because that's what variables do... vary, according to manipulation.

What is the manipulated, responding, and the controlled variables in this question?

Here's the question: If I don't make any changes to the chicken embryo, then the chicken embryo will fully develop with health problems.What is the manipulated, responding, and the controlled variables in this question?
cheak out website

What is are the dependant variables & independant variables, and controlled variables in thi science experimen?

im investigating and observing whether different colours are equally visible in the dark.


im using coloured paper and the dial on my light switch to adjust the brightness %26amp; dimness. umm im also using people in my family to determine what they see for the results


thanks. :)What is are the dependant variables %26amp; independant variables, and controlled variables in thi science experimen?
The independent is the lights vs. dark because your controlling that to see its effect on the dependent variable, which in your case is the visibility of the colors in light vs. dark.
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  • I forgot what the control, independant and dependent variables are!!!?

    Can someone give me a definition of each and explain their purpose? I don't remember what each of them mean! Thanks.I forgot what the control, independant and dependent variables are!!!?
    The control is the baseline for your experiment.





    Independent variables are those whose values are controlled or selected by the experimenter.





    Dependent variables are those that change based on the independent variables.I forgot what the control, independant and dependent variables are!!!?
    - control variable are the things that you keep the same in order to make it a fair test


    - independant variable is the thing that you change in your experiment so the thing you are investigating


    - dependant is the thing you measure so the results which you record in your experiment
    The dependent variable is the the event/item being measured to see if it is different when the independent variable is changed.





    One way I remember the difference is that the outcome (dependent variable) DEPENDS on the INput (independent variable).





    A control variable is a factor that is held constant so that it won't affect the impact that the independent variable makes.





    Here is an example of a simple experiment. Let's say we want to test if a basketball bounces higher than a tennis ball when it is dropped.





    The independent variable is the type of ball.


    The dependent variable is the height of the bounce.





    We might test this by dropping balls off of a balcony onto the driveway. To check to see if a basketball bounces higher than a tennis ball, we need to control for certain variables.





    We will want to control for the height from which they are dropped. (if one ball falls 10 feet and another 11, how do your really know it is the ball type that made the difference in the bounce?





    We also want to control the surface that the balls land on. (eg Make sure both land on concrete as opposed to one landing on dirt or black top or wood.) You also may want to control for things like temperature and weather (would wind or rain affect a bounce?).





    The easiest way to control for all of these factors would be to drop both balls at the same time from the same balcony, side by side.





    To repeat, the ball type is the input and factor that is purposely varied. The height of the bounce is the dependent variable. It may be affected by the type of ball.





    Height, speed, surface, weather, etc are control variables.

    I was assigned to think of a experiment that has a control, independent and dependent variables!!?

    2. A social psychologist thinks that people are more likely to conform to a large crowd than to a single person. To test this hypothesis, the social psychologist had either one person or five persons stand on a busy walking path on campus and look up. The psychologist stood nearby and counted the number of people passing by who also looked up.





    Independent variable: Size of group (5 people or 1 person)





    Dependent variable: Conformity (measured by number of people looking up)





    Experimental group: People passing 5 person group





    Control group: People passing single person. (This group gets “less” of the independent variable)

    Control variables?

    I'm not sure what they are, can someone please give me a few examples of what they could be?





    thanksControl variables?
    temperature


    pressure


    weight of products


    weight of reactants %26amp;

    Which are the dependant in dependant and controlled variables?

    i have to soak an egg in vinegar for two days, then two days in water. and one day in orange juice food colored water and salt water.Which are the dependant in dependant and controlled variables?
    start with your Hypothesis:


    If I soak an egg in such in such liquid then This is going to happen.


    The liquid is your independent variable, what the out come is is you dependent variable and your control could be the temperature, amount of liquid etc... It is what you control in the experiment.Which are the dependant in dependant and controlled variables?
    The indepentant is how long you soak it for. The dependant is what happens to it, and the controlled is what you soak it in
    An independent variable is one that is not affected by other conditions, in your case, time. It keeps moving regardless of whatever else happens in the experiment.





    A dependent variable is one that is affected by, or dependent on, the other variables. In your case, these would be what happens to the egg.





    A controlled variable is one that you control such as the substance you soak the egg in.





    :)
    the dependent is, of coarse, the egg because it depends on the water.





    the independent variable is the water, orange juice, vineger, etc.





    and the controlled variable is the two days.
    independant is what you soak it in and for how long, and idk the dependant because you didnt tell what you were trying to find out or the ';question'; and dependant is also impossible because of this sorry
    controlled variables in an experiment are ones that you can control, like soil type, amount of water you add, number of plants. just an example.
    the independent variable is the variable you change on purpose. the dependant is the the effect of the independent. and the controlled variable is the variable that stays the same. so if you planted plants with different fertilizers the fertilizer would be the dependant variable and the independant would be how fast the plant grows. the controlled variable would be the plant with no fertilizer so you can use it for comparison.

    Can someone help me with my controlled variable?s?

    i have science project due on friday but i dont knkow what they are can someone tell me what they are and how to do it? ASAP PLEASE!Can someone help me with my controlled variable?s?
    Describe your project --


    controlled variables are any elements that could possibly affect your dependent variable, so you ';control'; them by making sure they are the same across all situations -- the only change you want is from your independent variable





    For example, if you are studying the affect of gamma rays on man-in-the-moon marigolds, it is vital that the only difference between your two crops of marigolds is whether or not they receive gamma rays.





    So you control the temperature, the lighting, the drafts, the humidity, the amount you talk to each set of flowers....





    You can see why scientists believe randomization is an important method for excluding extraneous effects.... there are so many elements to try and control, and we can't be sure we get all of themCan someone help me with my controlled variable?s?
    controlled variables are everything you made stay the same throughout the experiment
    basically what a controlled variable means is that one variable always stays the same.





    for example, if your project is about which car goes down a ramp the fastest, your controlled variable would be the ramp angle, which always stays the same. the variable that changes would be the car that goes down the ramp.





    it's important to have a controlled variable so you have the most accurate results. if you changed both the car and the ramp angle every time in the experiment stated above, your results wouldn't be accurate.
    A controlled variable is one you do not manipulate. You do not want it to affect your experiment, so you randomly assign ';it'; to conditions. If you think (for example) that the sex of a person will influence your experiment (what you are measuring) you do your experiment with all males or all females....you control it. A controlled variable is one you are not directly interested in, but you think it may influence your results, so you control it's affect.....random assignment, or making it not different in the conditions you are manipulating. (keeping it the same)

    In a psychology experiment how do you control extraneous variables in opportunity sampling?

    fnkzzIn a psychology experiment how do you control extraneous variables in opportunity sampling?
    It will depend on the nature of the extraneous variable/experiment.





    External variables like noise, you can control by manipulating your setting, but internal ones (say psychology knowledge if you just take people you see in the Psychology Department) you wont be able to.
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  • What is a controlled variable?

    in an experiment a controlled variable is one that is, well, controlled. for example, say the viscosity of a fluid is a function of temperature and pressure. you want to know the effect of just temperature. you must control the pressure and let temperature change to find the effect of just temperature. if you did not control the pressure you'd find it much more difficult to find out the effect of just temperature.What is a controlled variable?
    A controlled variable is variable that can only have one anwser in the equation. For example:


    5x+3/1-x=15


    So (x) would then be 3

    Independent/ Dependent/ Controlled Variable help for science fair!!!?

    My science fair project is which type of soda is safest to drink. Im testing 3 different types of sodas and the factors that im using are their pH, caffeine content, and syrup content. Im using distilled water as my control. i had 13 trials and found their averages. What are my independent, dependent, and controlled variables?Independent/ Dependent/ Controlled Variable help for science fair!!!?
    controlled variables- types of soda, amount of soda tested,


    dependent-safeness of the soda


    independent-ph,caffiene content,syrp content





    im not sure if that is right, I think it is.

    What are the relevant controlled variables in this experiment?

    So we did an experiement to test unknown gases that are produced when hyrdogen peroxide and manganese dioxide react, when HCl and magnesium react and when HCl and sodium bicarbonate react.


    would the relevant control variables be like the amount of acid used...and things like that? im not sure ahh.


    please help and explainn=) thank youuu so much!What are the relevant controlled variables in this experiment?
    Controlled variables are anything that was the same between the two experiments. So the amount of acid used, time, or anything else that stayed the same between the two.What are the relevant controlled variables in this experiment?
    Yes the Control are the things you always keep the same


    Such as:


    The amount of water/acid whatsoever


    The same test tubes?


    Same Time they were put in something like that* Think of all the things that related to each other

    Determine variable pressure drop....pressur edrop do to control valve?

    Basically designing an olefins plants...lots of distillation towers and pumps...need to determine the pressure drop of control valves.





    Told 30-60% of variable pressure drop = control valve pressure drop


    Also Variable pressure drop is NOT..... ro*g*h





    So i was told though that is the defintion of variable pressure drop.....not sure what to use





    thanksDetermine variable pressure drop....pressur edrop do to control valve?
    I hope these help.

    What are some possible controlled variables?

    A researcher is interested in determining the effect of a new biology curriculum (NBC) on achievement of students as shown by the NABT exam. Students in 10th grade biology classes in a five county area of Southwest Florida were included in the study. One high school was utilized for each county involved. Using a t-test, the researcher reported a ';t'; value of 4.17, which was significant at the 0.04 level in favor of the students in the groups using the new curriculum. What are some possible controlled variables?What are some possible controlled variables?
    Mmmm, the type of test, amount of students (used in test), the type of test used, the grade level tested..? Those are the ones that i could think of! good luck!

    Whats a manipulated variable and controlled?

    ok i'm doing a science project about mice.


    its said that if i place a bucket with dirty clothes in a warm place and another bucket with clothes in a warm place but put a cover on the bucket.


    which is manipulated and which is controlled?


    please help.


    thanks :DWhats a manipulated variable and controlled?
    I think manipulated equals controlled. And the other one is neither manipulated nor controlled.
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  • In a psychology experiment how do you control extraneous variables in opportunity sampling?

    fnkzzzIn a psychology experiment how do you control extraneous variables in opportunity sampling?
    You control these variables by choosing a close to optimum place and time to conduct the experiment.

    Why do we as a society seek control over influential factors and variables in our lives?

    Because we're all control freaks:) It's so ironic too because we don't have any control at all.Why do we as a society seek control over influential factors and variables in our lives?
    Because we don't want to be robots!Why do we as a society seek control over influential factors and variables in our lives?
    are you the one who reported my dead cars in my yard.i wish you people would get a life and stay on your side of the fence
    Because we want to be in control of our lives and try to influence anything that will allow us to have that control. Otherwise we just go alone and let others decide what we can or must do and that is not healthy.
    You already mentioned the key word here, ';control';. As individuals, our nature is to gain control of the aspects of our lives. As a society, we do the same thing collectively on a larger scale.

    What is controlled variable and controlling variable?with examples?

    definition!!What is controlled variable and controlling variable?with examples?
    a controlled variable would be a variable you could adjust and/or keep fixed, such as temperature.





    A controlling variable would be one that creates a desired change by adjusting the controls, such as the accellerator in a car.

    Why do we as a society seek control over influential factors and variables in our lives?

    Because we're all control freaks:) It's so ironic too because we don't have any control at all.Why do we as a society seek control over influential factors and variables in our lives?
    Because we don't want to be robots!Why do we as a society seek control over influential factors and variables in our lives?
    are you the one who reported my dead cars in my yard.i wish you people would get a life and stay on your side of the fence
    Because we want to be in control of our lives and try to influence anything that will allow us to have that control. Otherwise we just go alone and let others decide what we can or must do and that is not healthy.
    You already mentioned the key word here, ';control';. As individuals, our nature is to gain control of the aspects of our lives. As a society, we do the same thing collectively on a larger scale.

    What is controlled variable and controlling variable?with examples?

    definition!!What is controlled variable and controlling variable?with examples?
    a controlled variable would be a variable you could adjust and/or keep fixed, such as temperature.





    A controlling variable would be one that creates a desired change by adjusting the controls, such as the accellerator in a car.

    What are the dependent, independent, and controlled variables in this science lab?

    In this lab, I am trying to prove the law of the conservation of mass by weighting vinegar and baking soda before mixing them together. Then i put them together in a flask and put a rubber stopper on it. Then i weigh the product. What are the dependent, independent and controlled variables in this lab? What are the dependent, independent, and controlled variables in this science lab?
    theres not really enough information to say, but i hope this helps:





    Independent: what you change in an expiriment every time.


    Dependent: what you measure once you change something.


    Controlled: the variables you keep the same each time you do an expiriement.What are the dependent, independent, and controlled variables in this science lab?
    The vinegar and baking soda are the independent variables. The weight of them both combined is the dependent variable---the weight depends on the amount of each that you put in. The controlled variable is the system inside the flask. The stopper stops anything from exiting or entering the closed system.
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  • What are the independent, dependent, and controlled variables in this science experiment?

    If I dip a paper towel in alcohol or peroxide or water before planting the seeds in soil, then the germination rate will improve.What are the independent, dependent, and controlled variables in this science experiment?
    The control variables are those where no experimental product is added; it is there as a baseline. An independent variable is the one that is manipulated by the experimenter, in your case, it would be the product (alcohol, water, or peroxide) that you add to the paper towel). Finally, the dependent variable, as the word implies, is the variable that depends (i.e. affected) by the independent variable, in your case, it's the germination rate.





    Hope this helps.

    What are the dependent, independent, and controlled variables in this experiment?

    For a science project i have to test whether temperature affects the growth of seedlings. So i'm putting half of the seedlings in the fridge, and the other half outside. If it is possible could you also please explain what dependent, independent and controlled variables are? I really don't get it.What are the dependent, independent, and controlled variables in this experiment?
    The easiest way to keep the independent/dependent variables straight is to remember that the letter ';D'; relates the DEPENDENT variable and the DATA that you are recording. In your example, the growth of the seedlings is the dependent variable since that is the DATA that you are recording, presumably as millimeters of plant height.





    The independent variables are the conditions under which you are growing the plants such as the different temperatures, soils, nutrients, moisture, sunlight exposure, etc. In your case, the temperature of the environment is the independent variable.





    However, as you've described your project, you have a problem with the lack of critical controlled variables. Presumably, the seedlings in the refrigerator will not be exposed to any sunlight whereas those grown outside obviously will. The controlled variables are all the variables that must be the same for both sets of plants except for the temperature. Both sets must have the same soil, nutrients, moisture AND sunlight exposure. Otherwise you will not be able to make any valid conclusions about the effect of temperature alone on the growth of the plants.





    Perhaps you could devise a small greenhouse-like structure in which a refrigeration unit could maintain a constant temperature within it and placed outside near your ';outdoor'; plants grown under normal conditions. Maybe the cold air from the refrigerator could be ducted to the ';greenhouse';.





    Oh, and one more thing -- soil moisture. The moisture in the warmer environment will evaporate faster than in the colder one. You'll need to monitor the soil moisture in both conditions and keep them the same.





    Welcome to the challenging world of science. There are soooo many things to consider! :o)

    Help with control group and variables?

    Bob thinks that a special drink will increase the productivity of his workers. He creates two groups of 50 workers and assigns each group the same task. Group A is given the special drink while they work, and Group B isn't given the special drink at all.


    What are the control group, independent variable, and dependent variables in this case?


    can someone explain how to find them please?Help with control group and variables?
    The Control Group are the workers without the special drink so Group A





    The Independent Variable is the special drink





    and the dependent variable is the workers





    (i'm pretty sure that's right)

    I need to know the independent, dependent, constant, and control variables in my project pleasee help fast?

    ok so i have to turn in a project in two day and i have no idea what to write my project is about if you where to stare at a color (red,blue,green the color changes) for thirty seconds and then look at a white space for thirty seconds what will be the afterimage pleaseeee help its almost due thanks (:I need to know the independent, dependent, constant, and control variables in my project pleasee help fast?
    IV: Color


    DV: Afterimage color


    Constants: Amount of time, person


    Control Variables: Surroundings? Not sure what the control variable is. What you change?

    Is a controlled variable when it changes during an experiment?!?!?

    Please explain in English, not where I can't understand it all!!!!!!!!!!!!!Is a controlled variable when it changes during an experiment?!?!?
    The controlled variable is the only thing that should be changed in the experiment. So if the result changes then we know that it is only due to the control changing.

    Science Project idea (need variable and and controlled factors)?

    I need to do a science project with a variable. Examples:Which paper towels are most absorbent I would use same amount of liquid and same liquid but different paper towels and test it.





    I want to do something different and creative (ten people are the paper towel thing.) But I'm short on ideas. So anyone have an idea?Science Project idea (need variable and and controlled factors)?
    These sites have lots of ideas for doing a science project:





    http://www.usc.edu/CSSF/Resources/Gettin鈥?/a>





    http://www.sciencebuddies.org/





    http://www.all-science-fair-projects.com鈥?/a>





    http://www.ipl.org/div/projectguide/





    http://school.discoveryeducation.com/sci鈥?/a>





    http://www.picadome.fcps.net/lab/sci_fai鈥?/a>





    http://www.scienceproject.com/





    http://www.energyquest.ca.gov/projects/i鈥?/a>





    http://www.freesciencefairproject.com/





    http://scienceclub.org/scifair.html


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  • What are the definitions for experimental and controlled variables?

    I understand basically what they are; I just need a single definition because I don't know how to explain it.What are the definitions for experimental and controlled variables?
    go on google.com type in Define: and the word you want

    What is are the dependant variables, independant variables, and controlled variables in a science experiment?

    In a science assignment I need to construct the ';perfect'; helicopter by testing different variables such as wing length, width etc.


    i am not sure what the difference between the three types of variables are.





    also when testing wing length i would for xample test 2cm 5 times, then 3cm, then 4cm etc, but what wing width would i use? and same for after that when i would be testing the perfect wing width, what wing length would i use?


    What is are the dependant variables, independant variables, and controlled variables in a science experiment?
    well this experiment seems to be a trial and error one. you might have to try out all your possibilities (yeah can be a bit tedeous) and then find the values which are the most stable.








    hope it helps to answer your question

    Which person is the control group?what is the independent variable?what is the dependent variable?

    larry was told that a certin muscle cream was the newest best thing on the market and claims to double a persons muscle power when used as part of a muscle building workout.intrested in thes product hey buys the special muscle cream and recruits patrick and spongbob to help him with an experiment.larry develops a special marshmallow weight lifting program for patrick and spongebob.he meets with them once every day for a period of 2 weeks and keeps track of their results.befor each session patrick's arms and back are lathered in the muscle cream,while spongebob's arms and back are lathered with the regular lotion.Which person is the control group?what is the independent variable?what is the dependent variable?
    Spongebob is using the control lotion. The independent variable is the muscle cream used by patrick. The dependent variable is the lifting program.Which person is the control group?what is the independent variable?what is the dependent variable?
    Dependent: muscle power


    independent: the different cream


    Control Group: Spongebob and Patrick

    Situation where a variable or quantity needs to satisfy ( or be controlled ) by an inequality. Your example s?

    Give an example of a situation where a variable or quantity needs to satisfy ( or be controlled ) by an inequality. Your example should be quantitative, not qualitative.Situation where a variable or quantity needs to satisfy ( or be controlled ) by an inequality. Your example s?
    The best example I can think of is a 16 oz drinking glass. The amount of liquid in that glass is always %26lt;= 16





    Is that what you are talking about?

    What is a controlled variable in sciecne?

    a controlled variable is something that you control





    mice in cage 1 does not get any food or water is a controlled variable, cruel but it is a controlled variable.





    Say that the cage has a hole in it and the mice can get out and get food and water from outside the cage. Now the level of food and water that the cage 1 mice is not controlled anymore.
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  • What are the controlled variables of this lab?

    Just as the question asked. What are the controlled variables of this lab? It's fairly simple: basically, we're measuring pumpkins (due to Halloween). We measure (and record on a table) the circumference, mass, height, and width of our (mini) pumpkins. What are the controlled variables of this lab? Our materials are: a scale and measuring tape (as you can imagine). So I ask again, what are the controlled variable of this lab? Thanks in advance!What are the controlled variables of this lab?
    The controlled variables are the pumkins





    Say something extremely obviouse in your hypothesies

    WHAT IS THE INDEPENDANT VARIABLE IN THIS EXPERIMENT? DEPENDANT? CONTROL GROUP?

    Mold experiment





    Material:





    1. banana


    2. cheese


    3. bread


    4. Milk


    5. a cabinet to put the samples in





    Procedure:





    First take all your samples and make sure they are not molded yet and that they are still fresh. Pour the milk in a glass and place it in the cabinet that you have chosen to use for your experiment. Next take the banana cheese and bread and place them in all separate dishes. Then put them in the same cabinet. It is important for them to all be in the same place for more accurate results because of the temperature of the area. Wait 4-5 days and check your samples and record your results in a table below.





    Record And Analyze Data:





    After a week we looked at all our results. It turned out that the milk molded the most. It started to show signs of mold in three days. The cheese and bread both showed signs of mold on the 4th day and the banana which showed signs of mold the least stayed fresh till about the 6th day.








    WHAT IS THE INDEPENDANT VARIABLE IN THIS EXPERIMENT?


    DEPENDANT?


    CONTROL GROUP?





    PLEASE HELPWHAT IS THE INDEPENDANT VARIABLE IN THIS EXPERIMENT? DEPENDANT? CONTROL GROUP?
    Independent Variable- Amount of time objects were left in the cabinet


    Dependent Variable- Amount of mold


    Control- NoneWHAT IS THE INDEPENDANT VARIABLE IN THIS EXPERIMENT? DEPENDANT? CONTROL GROUP?
    What variable can you control? (the type of media) INDEPENDENT


    What variable do you measure? (the time to onset of mold) DEPENDENT


    Which measure of the independent variable do you use to demonstrate no dependent variable? This would be your CONTROL GROUP. You actually don't have one, since all samples went moldy.


    A good control would have been distilled water.

    Which is the variable and which is the control??? PLZ HELP DO NOT SKIP IMPORTANT DUE TOMORROW?

    THE PROBLEM


    The problem in this experiment is that we do not know which type of cooking method will make the potatoes moist and tender.


















































    THE PURPOSE


    The purpose of this project is to find out which type of cooking method will make the potatoes moist and tender.


















































    THE MATERIALS


    9 red potatoes


    1,150mL of water


    1 pot


    1 container


    1 square plastic wrap


    1 toothpick


    1 knife


    3 squares of foil


    Oven


    Stove


    Microwave


    Timer


    Pencil


    Paper


    1 measuring cup


    Parental advisory


    THE ABSTRACT/BIBLIOGRAPHY


    The reason I am doing this project is to let people know the best way to cook their potatoes so the can get the best taste, texture, and color possible.


    What I did was I got 9 potatoes, a pot about 13.5 cm in depth, a square container about 8 cm in depth and 16 cm in length, a measuring cup and 1,000 mL of water to fill the pot, 3 squares of foil that measures exactly 29.5 cm, and 1 square of plastic wrap that is 29.5 cm (same as foil) .then I put the pot on the stove and filled it with 1,000 mL of water and waited 10 minutes for it to start reaching its boiling point, then I put 3 potatoes in and every 5 minutes for 30 minutes I would stick the toothpick in and record how long it would take to penetrate the skin and go through to the other side at a 90 degree angle. To make the potatoes in the microwave I got the square container and filled it with 150 mL of water, put the plastic wrap on the container and poked 8 holes each 2-4 inches apart. After that I put it in the microwave for 30 minutes and every 5 minutes I did the same thing that I did with the pot on the stove. Now with the potatoes in the oven I had to wash them, wrap them in the foil, and preheat the oven to 232.2 degrees Celsius. As I preheated the oven I put in the potatoes for 30 minutes and repeated the same procedure as I did with steps 1 and 2 and timed how fast the toothpick went through the potato.




































































    THE PROCEDURE鈥?br>

    FOR THE STOVE


    Get 9 potatoes, 1 pot, 3 squares of foil, 1 square of plastic wrap, 1 toothpick, 1 container, and 1 measuring cup.


    Fill the measuring cup with 100o mL of water and fill the pot with it.


    turn the dial on the stove to 6 or 7 and let it heat up for about 10 minutes


    Before time is up get the timer and time how long it takes for the toothpick to go all the way through the potato.


    After 10 minutes place the 3 potatoes in carefully so the hot water doesn鈥檛 splash up.








    tell me whic is whichWhich is the variable and which is the control??? PLZ HELP DO NOT SKIP IMPORTANT DUE TOMORROW?
    The variable is what you vary, or change. In this case it would be how you cooked the potatoes. The control is the thing you don't change. It is also the thing you compare you variable to. So, in this case, you would use a raw potato, and then compare your cooked potatoes to it.Which is the variable and which is the control??? PLZ HELP DO NOT SKIP IMPORTANT DUE TOMORROW?
    I am guessing here...





    the potato is the control...the variables would be the water, the heat, and the time....

    What are some variables that can change in an experiment, and discuss the importance of a control group?

    This is a question my teacher assigned me in my biology class and I don't know the answer. HELP!!!What are some variables that can change in an experiment, and discuss the importance of a control group?
    All the environmental conditions other than the experimental variable can change in an expeirment.





    In an experiment, you want to find out how one single thing affects another. For example, how sunlight affects plants. In order to see this, you must have two sets of plants, one set (the controls) kept out of sunlight, and the other set (the experimental variable) kept in sunlight. You can tell the affects of sunlight by the differences between the two sets. However, all the other conditions of the plants (i.e., the soil they are grown in, the amount of water they are given, their temperature and the availability of air are additional variables. All of these must be the same for BOTH the control and the experimental plants, or you won't be able to tell whether the differences between the two sets of plants are due to the presence or absence of the experimental (sunlight) or whether they are due to the other differences between the sets of plants.





    You must have a control so you know how the plants grow without the experimental variable as well as with it, just as a basis for comparison.

    What's a controlled, independent, and dependent variable? (example please)?

    Im in 6th grade =S and im 12 and I can't figure out what's a controlled, independent, and dependent variable. I HAVE A TEST TOMORROW! Please help! Answer in good detail as you can.What's a controlled, independent, and dependent variable? (example please)?
    Dependent and independent variables refer to values that change in relationship to each other. The dependent variables are those that are observed to change in response to the independent variables. The independent variables are those that are deliberately manipulated to invoke a change in the dependent variables.





    Depending on the context, independent variables are also known as predictor variables, regressors, controlled variables, manipulated variables, or explanatory variables.





    The dependent variable is also known as the response variable, the regressand, the measured variable, the responding variable, the explained variable, or the outcome variable.What's a controlled, independent, and dependent variable? (example please)?
    im not sure about controlled, but





    independent, when dealing with systems, means there is only 1 solution





    dependent, means an infinite number of solutions





    idk if you and i are talking about the same thing though because im a sophmore,





    and i dont think you would have gotten to this yet





    compare to your notes and see if that makes any sense
    Think of it this way, an independent variable works by itself, it doesn't need anything to support it. Think of yourself as a dependent variable, you depend on your parents for what you have, at age 12 you can't operate outside on your own. When something is controlled that means it's monitored or watched for changes in behavior or variables in this case.
    http://en.wikipedia.org/wiki/Variable
  • gas mask
  • Which is the variable and which is the control??? PLZ HELP DO NOT SKIP IMPORTANT DUE TOMORROW?

    THE PROBLEM


    The problem in this experiment is that we do not know which type of cooking method will make the potatoes moist and tender.


















































    THE PURPOSE


    The purpose of this project is to find out which type of cooking method will make the potatoes moist and tender.


















































    THE MATERIALS


    9 red potatoes


    1,150mL of water


    1 pot


    1 container


    1 square plastic wrap


    1 toothpick


    1 knife


    3 squares of foil


    Oven


    Stove


    Microwave


    Timer


    Pencil


    Paper


    1 measuring cup


    Parental advisory


    THE ABSTRACT/BIBLIOGRAPHY


    The reason I am doing this project is to let people know the best way to cook their potatoes so the can get the best taste, texture, and color possible.


    What I did was I got 9 potatoes, a pot about 13.5 cm in depth, a square container about 8 cm in depth and 16 cm in length, a measuring cup and 1,000 mL of water to fill the pot, 3 squares of foil that measures exactly 29.5 cm, and 1 square of plastic wrap that is 29.5 cm (same as foil) .then I put the pot on the stove and filled it with 1,000 mL of water and waited 10 minutes for it to start reaching its boiling point, then I put 3 potatoes in and every 5 minutes for 30 minutes I would stick the toothpick in and record how long it would take to penetrate the skin and go through to the other side at a 90 degree angle. To make the potatoes in the microwave I got the square container and filled it with 150 mL of water, put the plastic wrap on the container and poked 8 holes each 2-4 inches apart. After that I put it in the microwave for 30 minutes and every 5 minutes I did the same thing that I did with the pot on the stove. Now with the potatoes in the oven I had to wash them, wrap them in the foil, and preheat the oven to 232.2 degrees Celsius. As I preheated the oven I put in the potatoes for 30 minutes and repeated the same procedure as I did with steps 1 and 2 and timed how fast the toothpick went through the potato.




































































    THE PROCEDURE鈥?br>

    FOR THE STOVE


    Get 9 potatoes, 1 pot, 3 squares of foil, 1 square of plastic wrap, 1 toothpick, 1 container, and 1 measuring cup.


    Fill the measuring cup with 100o mL of water and fill the pot with it.


    turn the dial on the stove to 6 or 7 and let it heat up for about 10 minutes


    Before time is up get the timer and time how long it takes for the toothpick to go all the way through the potato.


    After 10 minutes place the 3 potatoes in carefully so the hot water doesn鈥檛 splash up.








    tell me whic is whichWhich is the variable and which is the control??? PLZ HELP DO NOT SKIP IMPORTANT DUE TOMORROW?
    The variable is what you vary, or change. In this case it would be how you cooked the potatoes. The control is the thing you don't change. It is also the thing you compare you variable to. So, in this case, you would use a raw potato, and then compare your cooked potatoes to it.Which is the variable and which is the control??? PLZ HELP DO NOT SKIP IMPORTANT DUE TOMORROW?
    I am guessing here...





    the potato is the control...the variables would be the water, the heat, and the time....

    What are some variables that can change in an experiment, and discuss the importance of a control group?

    This is a question my teacher assigned me in my biology class and I don't know the answer. HELP!!!What are some variables that can change in an experiment, and discuss the importance of a control group?
    All the environmental conditions other than the experimental variable can change in an expeirment.





    In an experiment, you want to find out how one single thing affects another. For example, how sunlight affects plants. In order to see this, you must have two sets of plants, one set (the controls) kept out of sunlight, and the other set (the experimental variable) kept in sunlight. You can tell the affects of sunlight by the differences between the two sets. However, all the other conditions of the plants (i.e., the soil they are grown in, the amount of water they are given, their temperature and the availability of air are additional variables. All of these must be the same for BOTH the control and the experimental plants, or you won't be able to tell whether the differences between the two sets of plants are due to the presence or absence of the experimental (sunlight) or whether they are due to the other differences between the sets of plants.





    You must have a control so you know how the plants grow without the experimental variable as well as with it, just as a basis for comparison.

    What is a controlling variable in science?

    It should be control variable, not controlling variable.





    It is spurious things that you know will influence the variable you are measuring in a major way. Hence, you should control for it.





    For example, if you want to determine the influence of shoe size on IQ, you might want to control for age, as it is a major influence on both.What is a controlling variable in science?
    I just learned abou this.....


    Manipulated-YOU CONTROLL





    Controling-WHAT STAYS THE SAME





    Responding-CHANGESWhat is a controlling variable in science?
    the independent variable
    Science Web Pages





    Megasites





    http://www.multcolib.org/homework/scihc.鈥?/a>





    http://www.infoplease.com/encyclopedia/s鈥?/a>





    Internet History of Science Sourcebook





    http://www.fordham.edu/halsall/science/s鈥?/a>





    This site explores the history of science throughout time and around the world, including Egypt, Scientific Revolution, the Industrial Revolution, Darwin, and more.





    http://www.multcolib.org/homework/scihc.鈥?/a>





    http://users.bentonville.k12.ar.us/ohms/





    Introduction | Steps





    The scientific method has 5 steps:





    http://www.pages.drexel.edu/~bcb25/scime鈥?/a>





    http://teacher.nsrl.rochester.edu/index.鈥?/a>





    http://www.hehs.d211.org/academics/scien鈥?/a>





    http://www.kathimitchell.com/scien2.html





    The seven types of science





    Type 1 science: orthodox science


    Type 2 science: interpretations placed on observations


    Type 3 science: fraudulent science


    Type 4 science: fiddling science


    Type 5 science: speculation


    Type 6 science: Polemic


    Type 7 science: Pseudo-science





    http://members.ozemail.com.au/~macinnis/鈥?/a>





    PHYSICS WEBSITES





    http://www.bcspanthers.org/physicswebsit鈥?/a>





    Physics:





    http://library.thinkquest.org/10796/





    http://www.staloysius.org/Myrtle/physics鈥?/a>





    http://www.sohamcollege.org.uk/curriculu鈥?/a>





    Good luck for the future.





    Kevin, Liverpool, England.
    something that the user can control, like how much water or what ever is used in the experiment
    Something that dominates the experiment.

    What are the variables in a persons life that he/she can completely control?

    There are things in life we cant control. which are most things.


    like disasters, decisions from your boss, your girlfriend falling in love with someone else.


    What are the things that you can completely control 100% control?What are the variables in a persons life that he/she can completely control?
    Your attitude towards those things that you can't control. Your thoughts and your actions. Your dreams.What are the variables in a persons life that he/she can completely control?
    Your reactions to the actions or things that happen in life. What you do in disasters or when your girlfriend falls in love with someone else. It may be difficult to feel you have control of your reactions and attitude but it's basically only thing I can think of that you do have control on.
    Yourself. That is all. You can only control your own person - how you choose to respond to all the other stuff. The rest is outta your hands!
    You can't control anything 100%. Even your dreams thoughts are influenced by things, people and events out there. Sad..

    What would be the control group,experimental group and variables for this experiment? please help?

    Im doing a science fair project due on Monday and i have most of it done but im not sure what the experimenta group, control group and variables would be please help.





    My question is ';What substances affect tooth decay the most?';





    to do it i put three eggs in three diferent containers, one with orange juice, one with coke and one with sugar water. can you help me please?What would be the control group,experimental group and variables for this experiment? please help?
    One egg has to stay in regular water, that will be your control group. You can use it to compare it to the other eggs.


    The variables are orange juice, coke and sugar water. The experimental group are the eggs that go into the orange juice, coke and sugar water.What would be the control group,experimental group and variables for this experiment? please help?
    what is your hypothesis? this is needed to know the other three.
    The variable is what liquid you put the egg in.


    The experimental group seems to be all three (OJ, coke and sugar water).


    A control group would be in normal water, or in air, or in your fridge.





    Explanation: the variable is the thing which is different in each test.


    The control group is the one which is not subject to your experiment or anything unusual. It is kept in ';normal'; conditions.


    The experimental groups are those which you are testing.
    control variable: what you should keep the same or different





    independent variable: stuff that you directly change (rationed amounts for each test)





    dependent variable: the way nature works like you cant determine which would be here the tooth decay ma-bobber





    thy effect of A on B

    Define Controlled Variable and Manipulated Variable?

    Define Controlled Variable and Manipulated Variable





    i have a test next week and i need to know what this is please help.Define Controlled Variable and Manipulated Variable?
    a manipulated variable is something that you change in order to create an experiment and determine the response variable.





    A controlled variable is a variable that you keep the same to ensure accuracy in your experiment.Define Controlled Variable and Manipulated Variable?
    I forgot. I just took a test in Biology on Thursday and I got an A on the test. Haha, that was one of the questions.
  • gas mask
  • What's the independent and dependent variable in a scientific controlled experiment? Please give examples?

    http://en.wikipedia.org/wiki/Dependent_v鈥?/a>


    http://en.wikipedia.org/wiki/Independent鈥?/a>


    Example: http://en.wikipedia.org/wiki/Independent鈥?/a>





    The independent variable is changed or altered or somehow manipulated by the experimenter and as a result the dependent variable changes.What's the independent and dependent variable in a scientific controlled experiment? Please give examples?
    The dependent variable is what you are measuring for a change when you vary the independent's variable value.





    Example the yeild of a chemical in a reaction varies with temperature, but you don't know in what way.





    So you fix the time, and do several experiments at various temperatures, then measure the amount produced at each temperature.





    Sometimes you are surprised and find out that the independent variable does not have an effect on the dependent variable.What's the independent and dependent variable in a scientific controlled experiment? Please give examples?
    The independent variable is the one you can control. The dependent is the one affected by changing that controlled variable.





    Lets say you wanted to know the relation between tire inflation pressure and gas mileage. The independent variable is the pressure. The dependent would be the gas mileage.





    BTW - I don't know why experimentation is still being taught this way. Statistical Design of Experiments allows you to vary multiple independent variables which give you information on interplay between those variables.
    Independent variable : The variable whose value can be fixed or taken at will





    Dependent : One whose value depends on the independent variable.
    A(x,y)=aX^2+bxy+cY^2


    Here is an example of A(x,y) which a dependent variable. it depends on two independent variables x%26amp;y.We have chosen a second degree equation. You could go to a higher degree to increase the complexity. Scientist has a hunch that Variable A has dependence mainly on two variables namely x%26amp;y. He conducts experiments by changing these vatiables and measuring the value of A for each value of independent variables x%26amp;y. Then these are plotted in the form of graphs. There are several techniques available to arive at the control equation. This is called curve fitting which is one of the methods in the regressive analysis. Once the equation is arrived at we can consider if there are other minor independent variables which can be incorporated to fin tune the equation.
    The independent variable is the one that is changed by the scientist and the dependent variable changes in response to the change the scientist makes to the independent variable. And some experiments also have controlled variables. Controlled variables are quantities that a scientist wants to remain constant, and he must observe them as carefully as the dependent variables

    Saturday, August 21, 2010

    What are three examples of variables the resercher might control during trails of a particular detergent?

    stain type


    temperature of water


    same water


    light


    agitation


    amount of stain


    amount of water

    On a variable power supply what do you call the knob the controls out output voltage?

    I have been working in the electronics industry for 11 years and still do now know the answer to this simple question.On a variable power supply what do you call the knob the controls out output voltage?
    The knob usually controls a potentiometer. So this is a potentiometer knob.

    What's the difference between a constant and a controlled variable?

    A constant is something that will ALWAYS remain the same in your experiment. For instance, the materials you use and the unit of measurements you use are examples of constants. Controlled variables are what you are using in order for you to compare your results.





    So for example, you want to test how soil affects plants. Your control could be 50% soil. You will then use 100% soil and 0% soil and compare these to the 50% soil to see if less or more soil will affect the plant. You know what I'm saying?What's the difference between a constant and a controlled variable?
    A constant is a variable that remains the same though out the entire experiment. A controlled variable is a variable in an experiment that you change. For instance, if you where trying to see what would burn more calories, running vs jogging for 10 minutes, running and jogging would be controlled variables, while the 10 minutes is a constant. What's the difference between a constant and a controlled variable?
    In an experiment, a constant is the parts of the experiment that you keep the same throughout regardless of your variables. The controlled variable usually has something to do with time, and it would be like the time part of the experiment took.


    Hope this helps, I'm not sure if this is right for your situation or not, though.

    How to control variables in the _GET string with PHP?

    This picture below, shows all the possible string variables





    http://www.target209.com/blah.jpg





    When the user goes to the main www.target209.com, the calendar will be set to the current month/year and the content will show a default message in the content board area.





    So basically, if a user doesnt cick anything, the current month/year will be showing for the calendar, and the default message will be showing in teh content board.





    If the user clicks on something ( either a calendar day, a weekly archive, month selector, etc. it then perform the isset eregi, etc.How to control variables in the _GET string with PHP?
    You'd use a condition such as:





    %26lt;?


    $now = time();


    $now_vars = getdate($now);





    if(!isset( $_GET['lm'] ) || !isset( $_GET['ly'] )) {


    $lm = $now_vars['mon'];


    $ly = $now_vars['year'];


    }


    else {


    $lm = $_GET['lm'];


    $ly = $_GET['ly'];


    }





    Then use $lm and $ly the way you would normally use the $_GET equivalents.





    Alternatively, if you don't want to recode, you could simply redirect the page to itself with the querty string rewritten.





    This would go at the very top of your page:





    %26lt;?


    $now = time();


    $now_vars = getdate($now);





    if(!isset( $_GET['lm'] ) || !isset( $_GET['ly'] )) {





    if(!isset( $_GET['lm'] )) {


    $mon = $now_vars['mon'];


    }


    else {


    $mon = $_GET['lm'];


    }





    if(!isset( $_GET['ly'] )) {


    $year = $now_vars['year'];


    }


    else {


    $year = $_GET['ly'];


    }





    $url = ';Location: index.php? lm=$mon %26amp;ly=$year';;


    header($url);


    }


    }


    ?%26gt;





    That basically sends the page back to itself, setting the $_GET vars for you based on the current month / year.





    UPDATE:





    http://www.dougv.com/blog/2006/12/09/in-鈥?/a>

    Science - Which is the controlled variable?

    The Experiment:





    Punching holes in Nappy Sacks then adding a hook with weights, you add more weights to see how strong the Nappy Sack is.





    You then change the brand of the Nappy Sack eg. Tesco Value. And repeat.





    You are trying to find out which brand is the strongest ?





    What variables are these and why ?





    Many Thanks !


    Science - Which is the controlled variable?
    The controlled variables are 1)the applied stress(weight which is applied0.2) the brands you check.If you punch holes to th same size and pattern that is not a variable.Science - Which is the controlled variable?
    money is the answe to everythinggg
  • gas mask
  • What variable must be controlled on this one????

    Your friend has to plan an experiment for a science fair. He asks for your help. His topis is ';The Strongest Cloth for Backpacks.'; What variables must his experiment include? What variables must be controlled?





    Thanks coz i need help! :)What variable must be controlled on this one????
    Controlled variables: Weight inside backpack, environment (temperature, humidity), how new the cloth is (if it has been used before or not)





    Independent variable: cloth typeWhat variable must be controlled on this one????
    mass added, (temperature of room), same surface area, same stitching, same volume.... all should be controlled
    The variables are the fabric and the weight put into the backpack (perhaps also the amount of time the weight was in the bag and the person or thing that picks up the backpack).


    The time and the person should be controlled.
    the variables for the simplest experiment would be the cloth, the weight, and the time.





    the weight would be the constant or controlled


    the time would be the dependent


    the cloth would be your changing variable





    all of the diff. clothes would have to use the same amount of weight or else the experiement would be faulty


    the time it takes the cloth to break would change depending on the cloth you use.
    Controlled definitly what you put inside the backpack...enviroment, size of backpack, amount of usage, things like that. Anything that doesnt include the fabric needs to be a controlled variable.

    Identifying the independent, dependent, and controlled variable?

    1. Fill each 16 ounce glass 2cm from the top, one with hot water and one with cold water.


    2.Allow the glasses to stand for 5 minutes.


    3.After 5 minutes, add one drop of food colouring to each glass. Be consistent about how you add the food colouring to each glass. For example, drop in the food colouring from the same height above each glass. Observe what will happen to the food coluring in each glass.





    what are the independent, dependent, and controlled variables?Identifying the independent, dependent, and controlled variable?
    Independent variable is the variable that is being changed. In the given situation, the independent variable is the temperature of water since you r changing it.


    Dependant variable is the one that is affected or caused by the independant variable. In your experiment, it will be the affect of food color you added in.


    Controlled varible is the one that should remain the same with every sample. In the given situation, the controlled variables are the amount of water and food coloring, the height from which the food coloring is dropped and the time given to each sample that is 5 mins, Any differences in the controlled variables will make the experiment bias.


    Hope that helps....Identifying the independent, dependent, and controlled variable?
    The Independent Variable: The Water Temperature (Hot or cold)


    Dependent Variable: The result of the experiment


    Controlled Variables: Volume of water, time the water is left to stand, food coloring amount, height the food coloring is dropped from.

    Using words such as data,variable,hypothesis.scien鈥?method,control,chemistry, experiment,conclusion?

    How New Evidence can change Einstein's Relativity Theory?Using words such as data,variable,hypothesis.scien鈥?method,control,chemistry, experiment,conclusion?
    why has he come back lollollolheheheheUsing words such as data,variable,hypothesis.scien鈥?method,control,chemistry, experiment,conclusion?
    Your hypothesis of any new evidence which might change Einstein's Theory of Relativity hasn't been forthcoming in at least the last century, and dismissing all of the variable data and experiments that have come forth debating the theory's validity have been rather easy considering the controlled and valid replication of actual experiments which have pretty much concluded that his theory will withstand the scrutiny of science - and advancing technology.
    Einstienian Theory was verified by DATA of observed deflection of VARIABLE light streams past the suns corona which was HYPOTHESISED to have a surface temperature of 6000 degrees by the METHOD of spectroscopic analysis which told us how the elements come under the CONTROL of gravity and CHEMISTRY of subatomic particles later showed by EXPERIMENT that there were existing so called imaginary particles like tachyons which can travel faster than light and give rise to the CONCLUSION that time itself can flow backwards!!


    Howzzat!! I used all the word you said and used them to change Einstiens Theory of Relativity which is still a theory and not a ';LAW';
    What is the new evidence?

    Which brand of popcorn pops the most kernals,dealing with independent variable, dependent variable,controlled?

    I have absolutely no clue what you are looking for. If you are trying to use the principles of independent and dependent variable control to predict which popcorn pops the most kernels, then check out these sites.





    http://www.rvgs.k12.va.us/statman/005.ht鈥?/a>





    This site just hit ctrl F and search for popcorn. Then read the script.





    http://www.nku.edu/~nackes/steppingthru.鈥?/a>





    This link is a kid's science fair project but I think it gets the point across. Hit ctrl F and search for variable and you should get what this student listed as their independent/dependent variable.





    Now, as for which brand really does pop the most kernals?





    http://www.mercer.edu/camps/message/summ鈥?/a>





    Read the results from this experiment. It shows that Act II Premeir Theatre popcorn pops the most.





    http://www.mercer.edu/camps/message/summ鈥?/a>





    This link is another question board with answers from different people.





    Hope this helps.

    Define the controls, dependent variable, and independent variable of a scientific experiment?

    Let me use an example to explain the terms. Say you wanted to study how a fertilizer affected the growth of a plant. If you just added fertilizer to all the plants, how would you know if it made a difference in how tall they grew? You only know this if there are some plants that don't get fertilizer so you have something with which you can compare the growth rate of the plants that are fertilized. So the plants that don't get the ';treatment'; are your control - in this example, this would be the plants that don't get the fertilizer.





    The independent variable is what you've changed to cause something different to happen - in this case, the use (or dose if you use more than one amount) of the fertilizer. The dependent variable is the the ';result'; of the change you've made - in this case, the growth rate, or height.





    Just remember that the independent is the ';cause'; and the dependent is the ';effect';. The control is the group that doesn't have any change, so you can compare.Define the controls, dependent variable, and independent variable of a scientific experiment?
    a control is a group within an experiment that is not experimented on... this forms your base guidelines for comparison later. an independent variable is a variable that is manipulated to cause a change. the dependant variable is what happens in response to the change in the independent variable.. i hope this makes sense but if not here's a link





    http://en.wikipedia.org/wiki/Independent鈥?/a>Define the controls, dependent variable, and independent variable of a scientific experiment?
    control variables are those that are input to the control system, dependent are those that are observed to change in response to the independent variables while the independent variables are those that are manipulated in the experiment..

    During which step of the scientific method would you identify variables and figure out how to control them?

    During which step of the scientific method would you identify variables and figure out how to control them? I have homework and i can't figure this one out help!!During which step of the scientific method would you identify variables and figure out how to control them?
    Since the Scientific Method is stated in varying ways, I would have to say it would be at whatever step in the version you have been taught, that the testing is designed.During which step of the scientific method would you identify variables and figure out how to control them?
    First step is identifying the problem (Ask the question)


    Second step is your hypothesis


    Third step is determining the method, which would involve identifying the variables and figuring out how to control them.
    3rd
  • gas mask
  • What is the difference between the control group, independent, and dependent variables in biology?

    The control group is the group that is unchanged, the group that you compare results with.





    The independent variable(s) is the quality that is changed in non-control groups.





    The dependent variable(s) is the quality that is affected by the independent variable. Usually, this is the quality you measure in an experiment.





    Example: You do an experiment that measures the effect of no sunlight on plant growth. You have 2 plants, one that will be grown in the dark and one grown in the sun. Since you are observing what NO sunlight will do, the control is the plant grown in the sun. That is the normal, unchanged group. The independent variable (the quality that is changed) will be the amount of sunlight that the plants are exposed to. The dependent variable could be the plant height, since that will be the quality you measure and it will be affected by the independent variable.What is the difference between the control group, independent, and dependent variables in biology?
    control group is what you have control over





    the independent variables are variables that are not affected by anything, they are just there





    the dependent variables are the ones you pay attention to in a experiment... this is because they DEPEND on what is done in the experiment and therefore help us find results and discover new things

    Explain how variable and controlled parameterrs are used in scientific experiments?

    i have no idea how to put this question into words, somone helpExplain how variable and controlled parameterrs are used in scientific experiments?
    I can guarantee this truth: If you don't eat the flesh of the Son of Man and drink his blood, you don't have the source of life in you. Those who eat my flesh and drink my blood have eternal life, and I will bring them back to life on the last day.

    What is a controlled variable. i need the definition.?

    It is as the word says: a variable controlled by you.

    What are the three variables that control development in black and white film processing?

    Time, temperature and concentration/dilution of the developer.What are the three variables that control development in black and white film processing?
    What are the three things that you HAVE to do right or you will botch the entire job?

    For sciance i need to know: what a Independent and dependent variable are and constant and control. PLEASE !!!

    I really need these! PLEASE ANSWER!For sciance i need to know: what a Independent and dependent variable are and constant and control. PLEASE !!!
    x axis is independent....y axis dependent





    time is always INDEPENDENT





    Lets say ur measuring the height of kids for a 10 year period


    ask what will happen no matter what??


    will time advance in this experiment?? yes


    will the kids always get taller?? no


    thus height is DEPENDENT on the kids age





    the control is the thing that doesnt change


    Lets say ur wanting to know if traction of a car is based on tire tread or weight of the car


    experiment would be using the same car and changing to different tires (thus the type of car is ur control)


    or


    experiment would be changing the weight of the cars (say by adding bags of sand), but keeping the tires the same (thus, tire type was ur control)


    the control gives u a ';standard'; to compare all results to; in an experiment only one variable can be changed--such as the number of sand bagsFor sciance i need to know: what a Independent and dependent variable are and constant and control. PLEASE !!!
    An independent variable is a variable in an experiment that can change the outcome of others. A dependent variable is a variable that changes because of the independant variable.





    For example, in an experiment testing the effects of different soil types, the soil type would be the independent variable and the height of the plants that grew from the soil would be the independent variable.





    In my science class, we only used controls, but those are the things that stay the same in all trials.





    For example, in the experiment mentioned above, the control might be the amount of water given to each plant.
    An independent variable is one that does not change. It means that it has all it needs and is mostly used as an example. A dependent variable is just what it says- dependent on the independent or more simply put it needs something. (Most kids are dependent upon their parents) The constant would be what changes in an experiment. The control group or control is the one you use for comparison. Ex: You have two groups of plants. The first group is put into a room with plenty of sunlight and gets accurate amounts of water. The second group gets put into another room with plenty of sunlight and accurate amounts of water along with some music. The first group of plants is your control group because the plants will grow and thrive like they would in nature with sunlight and water. The second group would be your constant because it has the advantage of music to help it grow.
    an independent variable is a part of the experimment that doesnt depend on a ny other part and i changable. a dependentvariable is the same thing, but it relies on another part to uphold it. o yeah, i am 12 years old in highschool science and college science. constant means that it is always going. control isto test or verify (a scientific experiment) by a parallel experiment or other standard of comparison. 1. not changing or varying; uniform; regular; invariable: All conditions during the three experiments were constant.

    Variables to control your experiment?

    Suppose you would like to find out which brand of glue hold better. What variables would you need to control in your experiment?Variables to control your experiment?
    Scientists use an experiment to search for cause and effect relationships in nature. In other words, they design an experiment so that changes to one item cause something else to vary in a predictable way.





    These changing quantities are called variables. A variable is any factor, trait, or condition that can exist in differing amounts or types. An experiment usually has three kinds of variables: independent, dependent, and controlled.





    The independent variable is the one that is changed by the scientist. To insure a fair test, a good experiment has only one independent variable. As the scientist changes the independent variable, he or she observes what happens.





    The scientist focuses his or her observations on the dependent variable to see how it responds to the change made to the independent variable. The new value of the dependent variable is caused by and depends on the value of the independent variable.





    For example, if you open a faucet (the independent variable), the quantity of water flowing (dependent variable) changes in response--you observe that the water flow increases. The number of dependent variables in an experiment varies, but there is often more than one.





    Experiments also have controlled variables. Controlled variables are quantities that a scientist wants to remain constant, and he must observe them as carefully as the dependent variables. For example, if we want to measure how much water flow increases when we open a faucet, it is important to make sure that the water pressure (the controlled variable) is held constant. That's because both the water pressure and the opening of a faucet have an impact on how much water flows. If we change both of them at the same time, we can't be sure how much of the change in water flow is because of the faucet opening and how much because of the water pressure. In other words, it would not be a fair test. Most experiments have more than one controlled variable. Some people refer to controlled variables as ';constant variables.';





    In a good experiment, the scientist must be able to measure the values for each variable. Weight or mass is an example of a variable that is very easy to measure. However, imagine trying to do an experiment where one of the variables is love. There is no such thing as a ';love-meter.'; You might have a belief that someone is in love, but you cannot really be sure, and you would probably have friends that don't agree with you. So, love is not measurable in a scientific sense; therefore, it would be a poor variable to use in an experiment.





    Think about it now. Can you determine the variables in your glue experiment?





    For additional resources and a table with examples of experimental variables please refer to the website listed below.
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  • In an experiment what is the independent variable,dependent variable and controlled variable?

    my experiment is if i heat an equal amount of cold and hot water which will boil first can anyone help me out on naming the variables in this





    thanks in advanceIn an experiment what is the independent variable,dependent variable and controlled variable?
    Independent Variable: Hot and Cold Water


    Dependent Variable: Temperature of water after time length of heating


    Controlled Variables: Same heating method, at same temperature, same containers











    In the design of experiments, independent variables are those whose values are controlled or selected by the person experimenting (experimenter) to determine its relationship to an observed phenomenon (the dependent variable). In such an experiment, an attempt is made to find evidence that the values of the independent variable determine the values of the dependent variable (that which is being measured). The independent variable can be changed as required, and its values do not represent a problem requiring explanation in an analysis, but are taken simply as given. The dependent variable on the other hand, usually cannot be directly controlled.





    Controlled variables are also important to identify in experiments. They are the variables that are kept constant to prevent their influence on the effect of the independent variable on the dependent. Every experiment has a controlling variable, and it is necessary to not change it, or the results of the experiment won't be valid.





    In summary:





    * Independent variables answer the question ';What do I change?';.


    * Dependent variables answer the question ';What do I observe?';.


    * Controlled variables answer the question ';What do I keep the same?';.





    Examples





    * If one were to measure the influence of different quantities of fertilizer on plant growth, the independent variable would be the amount of fertilizer used (the changing factor of the experiment). The dependent variables would be the growth in height and/or mass of the plant (the factors that are influenced in the experiment) and the controlled variables would be the type of plant, the type of fertilizer, the amount of sunlight the plant gets, the size of the pots, etc. (the factors that would otherwise influence the dependent variable if they were not controlled).





    * In a study of how different doses of a drug affect the severity of symptoms, a researcher could compare the frequency and intensity of symptoms (the dependent variables) when different doses (the independent variable) are administered, and attempt to draw a conclusion.





    * In measuring the acceleration of a vehicle, time is usually the independent variable and speed is the dependent variable. This is because when taking measurements, times are usually predetermined, and the resulting speed of the vehicle is recorded at those times. As far as the experiment is concerned, the speed is dependent on the time. Since the decision is made to measure the speed at certain times, time is the independent variable.





    * In measuring the amount of color removed from beetroot samples at different temperatures, the dependent variable would be the amount of pigment removed, because it is depending on the temperature (which is the independent variable).





    * In sociology, in measuring the effect of education on income or wealth, the dependent variable could be a level of income or wealth measured in monetary units (United States Dollars for example), and an independent variable could be the education level of the individual(s) who compose(s) the household (i.e. academic degrees).In an experiment what is the independent variable,dependent variable and controlled variable?
    hmm i did this i dont remember which ones which but we had to boil yeast aww buddy that crap smelt like old similac YUCK Titty milK LOL but it was cool we had to boil a already cold 1 and a room temp one and a already hot 1
    control : room temperature water


    dependant v: how long it takes the water to boil


    ind variable: the starting temps of water





    i think... not sure.
    independent: heating of the water


    dependent: which boils first


    controlled: amount of water

    Wuts an independent variable, a dependent variable, a constant and a control..im doing a science experiment :)

    An independent variable is the variable that does not depend on anything, like time.





    The dependent variable depends on the independent variable.





    Here is an example... You want to measure how irritated you get from being around your little brother as a function of time. Time passes, regardless or your irritability. But the more time passes, your irritability changes. So your irritability is dependent on the independent factor of time.





    The control is something that you use to measure experimental values by. Suppose you are not sure that it is your brother making you irritable... maybe you just become irritable because you are part of the experiment. So, one day, we measure your irritability as a function of time without your brother. This is the control. That way when we measure your irritability with your brother around, we can see how these two differed.





    Finally, the constant is something that doesn't change. Maybe your brother is twice as irritable as your sister. In this case, irritability is being multiplied by a constant. Maybe ritalin makes your brother less iritable by a constant amount. Maybe simply being in the room with your brother, even while he is sleeping, increases your irritability by a certain, constant, amount.Wuts an independent variable, a dependent variable, a constant and a control..im doing a science experiment :)
    well i know a constant is a sample you do nothing to. you use it to compare. hope it helped a little!Wuts an independent variable, a dependent variable, a constant and a control..im doing a science experiment :)
    the independent variable usually is on the x axis it sort of stands by itself the dependent variable is on the y axis, and it is just that it changes in relation to the independent variable. if for example, y=x+2 y will change according to what ever x is a constant does not change no matter what the conditions a control is usually used to make sure the experiment worked or is working, the value of the control should fall within certain limits if the experiment is working properly
    Experiment means you're studying impact of one thing on another. ';One thing'; is represented by indepent variable, ';another'; - by dependent one. If you think some other things might affect dependent variable, they're controls.





    Constant is the intercept term in the linear equation that links the varibles, and it means value of dependent variable if independent and controls are set to zero.





    Control has a second meaning. When you test a medical drug, you split your subjects into two groups - one gets the drug, the second doesn't. First group is called treatment group, and second - control group. This is done because you cannot know (%26amp; use as control variable) great many things about your subjects - their metabolism, drug resistances, etc.

    What is a controlled, independent, dependent and categorical variable?

    Could I have some examples as well please :)What is a controlled, independent, dependent and categorical variable?
    A control group goes through all the steps of an experiment but lacks the factor, or is not exposed to the factor, being tested. Inother words, sample that goes through all the steps of an experiment but does not contain the variable being tested.








    Some groups receive a treatment (experimental), while other groups receive no treatment (control). To ensure that the outcome due to the experimental variable (independent variable), all other conditions between the groups in the experiment are identical. The result is called response variable (dependent variable) because it is due to the experimental treatment.

    What are the control group, test group, indep and dep variables for experiment on basketball shooting?

    the project will determine if a ball's starting position for shooting a basketball affects a players shooting percentage.


    shooting positions will be from each hand from the chest, chin, over head. I will keep track of how many shots each player made from each hand position.What are the control group, test group, indep and dep variables for experiment on basketball shooting?
    You will have each player shoot from 6 positions, say 10 shots each. The players that do this are the test group = you are testing them.





    For a control group, I would use the same people. Have each person shoot 60 shots in their normal shooting motion. Record the number of shots made for each set of 10. This will tell you how well the person usually shoots.





    I think I would have them shoot 10 from one of the test positions, then 10 as they normally would, then a second set from a different test position, then 10 to control, and so on. That way you will be able to see if they just get better as they shoot (last 10 control and last test position are much better than the first control and test shots), or if a particular position seems to be best (everyone shoot best from right hand at the chin while all the control groups of shots were about the same).





    I think I would have them all do the various test positions in the same order, but maybe that isn't so important. I would also note whether people are right or left handed.





    Hope that makes sense!





    As for dependent and independent variable: if I understand correctly, the independent variable is the shooting position = you are deciding on it, and there is no other influence. I think then that the dependent variable would be the number of shots that go in.





    Good luck!

    Explain the difference between independent and dependent variables. If you think that low self control?

    affects crime, which is the independent variable and which is the dependent variable?Explain the difference between independent and dependent variables. If you think that low self control?
    Crime is the dependent, as it is the thing affected by low self control. This would make self control in general the independent variable, because people don't get low self control because of crime.Explain the difference between independent and dependent variables. If you think that low self control?
    Independent and dependent variables are mathematical tools used in an experiment to keep track of what's going on. They allow you to maintain control over your experiment in a quantitative way. using them, you will be able to measure your results and draw accurate conclusions.





    An independent variable is a stands alone and isn't changed by the other variables you are trying to measure. For example, someone's age might be an independent variable. Other factors (such as what they eat, how much they go to school, how much television they watch) aren't going to change a person's age. In fact, when you are looking for some kind of relationship between variables you are trying to see if the independent variable causes some kind of change in the other variables, or dependent variables.





    A dependent variable is something that depends on other factors. For example, a test score could be a dependent variable because it could change depending on several factors such as how much you studied, how much sleep you got the night before you took the test, or even how hungry you were when you took it. Usually when you are looking for a relationship between two things you are trying to find out what makes the dependent variable change the way it does.





    (Time Spent Studying) causes a change in (Test Score) and it isn't possible that (Test Score) could cause a change in (Time Spent Studying).





    Independent Variables are changes that occur in an experiment that are directly caused by the experimenter (you.)





    Dependent Variables are changes that occur due to independent variables.





    A Controlled Variable is anything else that could influence the dependent variables.
    Self control= independent variable


    Crime=dependent variable


    y depends on x ( y being the dependent variable and x being the independent variable) so in you sentence low self control affects crime. The crime would depend on the self control.

    In java, A variable declared inside the for loop control cannot be referenced outside the loop ?

    TRUE / FALSE In java, A variable declared inside the for loop control cannot be referenced outside the loop ?
    TRUEIn java, A variable declared inside the for loop control cannot be referenced outside the loop ?
    I think it depends on what the variable is declare as. Like public or private. But I'm not sure though.
    TRUE
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  • Whats the indep, dependant, and control variables?

    In 1928 Sir alexander fleming was studying staphylococcus bacteria in grown culture dishes. he notices a mysterious mold also growing in some of the dishes. a clear zone existed around the unknown mold





    all of the bacteria that had grown in this clear zone had died. in the culture dishes without the mold no clear areas were present





    Fleming reasoned that the mysterious mold must be producing a chemical that killed the bacteria. he decided to isolate this substance and then test it to see if it would kill bacteria.














    Fleming transferred the mold to a nutrient broth solution. (this solution contained the materials the mold needed to grow and reproduce)





    he allowed the mold to grow, then he removed the mold form the broth. Fleming added the nutrient broth in wihch the mold had grown to teh bacteria.





    He observed that the bacteria were killed. Fleming added nutrient broth that did not have the mysterious mold growing in it to another dish of bacteria. the bacteria in this dish were not killed.Whats the indep, dependant, and control variables?
    dictionary.com or google.com or wikipedia.com

    Which is the manipulated/responding/control鈥?variable?

    Honey is being heated in a beaker of water on a hot plate.





    Please help me! %26gt;_%26lt;Which is the manipulated/responding/control鈥?variable?
    manipulated-amount of heat


    responding-honey


    control-beaker

    What would be an example of a NON controlled variable? ?

    study where 1/2 the kids watch edu TV and 1/2 the kids watch cartoons?What would be an example of a NON controlled variable? ?
    == In the design of experiments and data analysis, control variables are those variables that are not changed throughout the trials in an experiment because the experimenter is not interested in the effect of that variable being changed for that particular experiment. In other words, control variables are extraneous factors, possibly affecting the experiment, that are kept constant so as to minimize their effects on the outcome. An example of a control variable in an experiment might be keeping the pressure constant in an experiment designed to test the effects of temperature on bacterial growth.

    Why do we as a society seek control over influential factors and variables in our lives?

    thanks...need ppls opinions as part of research for my majorwork.


    \


    any personal experiences/ opinions about ur own need for control will be appreciatedWhy do we as a society seek control over influential factors and variables in our lives?
    The illusion of some control over the chaos of my life makes me feel SAFE. This is the same reason many people become so stuck in a routine that they can't get out of. Either because it makes them feel safe or the act of not performing their routine causes an irrational fear that something bad will happen.Why do we as a society seek control over influential factors and variables in our lives?
    Learning to control things is part of human nature.


    We learn that by creeping and crawling we can get to interesting things on the floor, and we have a choice about which ones to investigate. This is control.


    We learn to walk, and entirely new horizons open up. We have even more choices now because we can see more things. Choosing which thing to investigate is about control.


    We learn to speak, and now we can voice our needs. Which needs we voice is a matter of need at first (I'm hungry, thirsty, etc.) but soon we can say Yes or No, and this is control.


    In other words, learning control (accumulating personal power is another way to look at it) is basic to becoming an adult.


    All societies seek to control the members of said society; that's why societies have rules, and it's how they identify members of the same society. We in the West seek to control things like inflation because we understand that severe inflation is a real problem. We also seek to contain the spread of infectious diseases, for obvious reasons.
    i dont either.please stay on your side of the fence.
    i don't do that. i have met some people that do. but not me sorry just had to say that.

    What is a control? and what is a variable? ?

    im doing a project------dont give me a long answers---i know one means something u change and something u dont change can sum1 tell me which is whichWhat is a control? and what is a variable? ?
    control is something that doesn't change.





    variable are what you experiment on.








    .What is a control? and what is a variable? ?
    variable means changing.





    a control remains constant through all subjects and experiments
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  • Need help identifying independent variable, dependent variable, and the control for my experiment?

    hey everybody! I am doing a science experiment and I need to identify the independent variable, dependent variable, and the control.





    okay so here is the experiment:


    What brand of soap foams the best when heated in the microwave?





    procedure:


    # Unwrap a bar of Ivory鈩?soap.


    # Place the bar of soap on a paper plate or microwave-safe dish.


    # Nuke your soap. Watch the soap closely to see what happens.


    # Depending on microwave power, your soap will reach its maximum volume within 90 second to 2 minutes. If you microwave the soap longer (I went up to 6 minutes) nothing bad will happen, but the soap won't continue to grow.


    #Measure the length and width of the soap foam and record the data.


    #Repeat the above steps with the two other brands of soap.





    Materials:


    * bar of Ivory鈩?soap, bar of Dove soap, and a bar of Olay soap


    * paper plate or microwave-safe dish


    * microwave oven


    * electric circuit





    so please help me identify the variables and control. Thank you :)Need help identifying independent variable, dependent variable, and the control for my experiment?
    Independent variables answer the question ';What do I change?';.


    Dependent variables answer the question ';What do I observe?';.


    Controlled variables answer the question ';What do I keep the same?';.








    Control variable - things that stay the same - time, temp, paper plate, microwave power





    Independent varialble - the thing your are testing - soaps





    Dependent - bubbles/foam

    What is a controlled variable?

    a variable that is not changedWhat is a controlled variable?
    It's the variable which is removed/not added in the control group of an experiment. The experimental variable is what is being tested (by adding or taking it away) in the experimental group of an experiement. The control group is used as a standard for comparison with the experimental group.What is a controlled variable?
    a controlled variable is a term that is used in a scientific expirement. like if you wonder if the roads paint is peeled off because of an ingredient then you would paint two identical sections of road with the two different types of paint... the two paints would be the controlled variable.
    it is a number that can changes but is still a number u can controle
    When doing an experiment, the control is the sample that is not messed around with. It provides a reference or baseline to see the differences in your experiment. As an example, here is a science project I did in 6th grade - I wanted to see if subjecting bean seeds to harsh conditions would affect the growth of the plant when the seed was planted. I dunked some in acid and then planted them, I subjected some to intense heat and then planted them, I subjected some to physical abuse and then planted them, etc etc. I also had to plant some bean seeds that I DIDN'T do anything to - just planted them normally, grew them normally. These plants whose seeds I did not mess with are called the control group, or my controlled variable. The resulting plants from un-abused seeds were the comparison plants to see the differences caused by seed abuse. I hope this makes sense. BTW would you believe that the bean seeds dunked in 60% sulfuric acid grew, although they were not as healthy as the control and they grew much slower. Sadly, the beans that were hit with a carbon-arc torch for 5 seconds did not even germinate. LOL

    Hi , visual basic 6 , stock control bu using static variable?

    hi , i want to create stock control by using static variable. i have text box which has 100 as text on it . i want to create code when i press on a command buttton that number to decrease by 1 number . when exit the program and come again i want that number to be there not 100. like a counter





    thank you





    thank youHi , visual basic 6 , stock control bu using static variable?
    How it is possible with the help of static variable?


    Static variable will hold ur value only till it exit from the program.


    Not at all possible.


    Only thing u can do is that, b4 quitting the program you can store the value of the static variable into a file and reload the value from the file to static variable whenever the pgm starts.