the control
The part of an experiment that is used for comparison is called the control. You test on one group, and don't test anything on the other, and then you see if the changes in the one are different than the other, or if the changes you see with the test are just the same normal variances you would see in the control.
Control
The independent variable.
varable
A control.
Independent variable ! :)
the independent variable
the control
An Experiment proves an Hypothesis
Control(:
hypothesis
the responding variable