Friday, May 14, 2010

What is the controlled variable?

I am doing a science experiment and for my report i need a controlled variable, what is it?What is the controlled variable?
The controlled variable is the one you control. In Boyle's law the temperature is the one you control and the volume of the gas is the dependant variable, ie the one you measure.





Controlled is controlled. As in Charles lay, pressure is controlled and volume is dependant.What is the controlled variable?
A controlled variable is the variable that you cannot change throughout the experiment. 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.

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