Saturday, August 21, 2010

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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