Friday, February 5, 2010

Which of the following statements is true about an experiment?

The control is allowed to change.





The variable is allowed to change.





The control is not used as a standard for comparison.





The variable is used as a standard for comparisonWhich of the following statements is true about an experiment?
In an experiment, everything is kept constant except one condition called the variable.





Answer: The statement that is true about an experiment is ';The variable is allowed to change.';Which of the following statements is true about an experiment?
A good experiment is done with a control that does not change. Only the variable should change, that's what you are trying to measure. The variable is what is being measured, that can only be done actually if the control is constant.

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