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3 September, 06:28

What is the 2 type of variable are being used in a controlled experiment?

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  1. 3 September, 07:45
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    An experiment usually has three kinds of variables: independent, dependent, and controlled. The independent variable is the one that is changed by the scientist. Why just one? Well, if you changed more than one variable it would be hard to figure out which change is causing what you observe.
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