Question

1. I know that a controlled experiment only tests one _____________________________________ at once.

•dependent variable


• independent variable


• test subject


• constant

2. I know that the ___________ is used as a comparison.

•dependent variable


• independent variable


•experimental group


•control group


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Answer 1

1. ) A controlled experiment only tests one Independent variable at once.

2.) I know that the control group is used as a comparison.