EVERYDAY SCIENCE

Detailed explanation-1: -Control-The control is the group that serves as a standard of comparison. It is exposed to the same conditions as the experimental group, except for the variable being tested.

Detailed explanation-2: -Controls or Controlled Variables A part of the experiment that is not being tested and is used for comparison of the experimental results. A control group should be used when conducting an experiment.

Detailed explanation-3: -A control group is used as a comparison for the experimental group. The control group is the group in an experiment that does not receive any change in the variable. This group is left as natural as possible and used as a control to see if there is a change from the normal results.

Detailed explanation-4: -The standard quantity (constant quantity) used for comparison is called unit. Measurement is the comparison of an unknown quantity with a known standard quantity (constant quantity) or unit.

Detailed explanation-5: -Control refers to holding constant all of the other variables that could affect the outcome. For example, a comparative experiment comparing the effects of two diets of different nutritional value on the growth of mice should ensure that the mice eat at the same time, regardless of which diet they are assigned to eat.