Question

(Question is not math related but Earth Science related. Will give medal.)
Why is it important for a control variable to be in an experiment?

Answer 1

Hello! ^_^
It is important for there to be a controlled variable/group so that you can see the difference. For example, in one of my science projects, I decided to grow plants using different liquids, but I had 1 group of plants with water since that is the normal way people do things to see if any of the other liquids grew the plants better than just water.

Answer 2

Ok. I understand it a lot better now. Thanks! :)

Answer 3

The controlled variable also stays the same throughout the experiment.

Answer 4

No problem :)