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. 15. All the things in an experiment that must be the same to make it fair are called? A) controlled variables or constants XB) independent variables C) controlled experiments …

. 15. All the things in an experiment that must be the same to make it fair are called? A) controlled variables or constants XB) independent variables C) controlled experiments …
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15. All the things in an experiment that must be the same to make it fair are called?
A) controlled variables or constants
XB) independent variables
C) controlled experiments
XD) dependent variables

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User Paul Van Den Dool
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The answer is A.

Independent variables are the things a scientists changes and dependant variables are the things scientists measures for the experiment.

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User Nishant Jani
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