In the following experiment, what is the independent variable? Dr. Honeydew would like to test the effect of chlorine on Beaker's hair color. To test this he pours heavily chlorinated pool water on the right side of Beakers head. To the left side of Beakers head he pours pure water. After doing this for several days, only the hair on the right side turns green.

Answer: Chlorine

Explanation:

An independent variable can be define as changable variable, which can be used to determine it's impact over the other variable (s) in the experiment. Dependent variable cannot be changed manually instead changes occur in the independent variable is because of impact of independent variable.

In this experiment, chlorine is the independent variable. The effect of which can be observed on the hair color, which is a dependent variable.