When experimenting with the growth of a plant, a scientist uses three of the same type of plants, two different fertilizers, equal light, and equal water. What type of variable is the water?a.Control variableb.Interdependent variablec.Independent variabled.Dependent variable
Question
When experimenting with the growth of a plant, a scientist uses three of the same type of plants, two different fertilizers, equal light, and equal water. What type of variable is the water?a.Control variableb.Interdependent variablec.Independent variabled.Dependent variable
Solution
The water in this experiment is a control variable. This is because it is kept constant and unchanging throughout the experiment. The purpose of a control variable is to provide a baseline to compare the changes in other variables. In this case, the water is not being manipulated or changed, so it serves as a control variable.
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