1 of 5 FINISH QUIZ

MULTIPLE CHOICE

A botanist wanted to determine the effects of different colored lights on plant growth. To

do this, she set set up an experiment in which one plant grew under blue light and one

under red light, and each plant received the same amount of water.

Q Zoom

Identify the independent valable.

different colors of light

B

plant growth

amount of water

D

none of the above

The correct answer is - different colors of light.

Explanation:

The independent variable is a variable or factor which is changed in a study or research to find what will be the change occur to the dependent variable. The manipulated factors or variables directly affect the dependent variable and help in concluding the result.

In this case, the variable that is affected is the growth of the plant while the variable that is manipulated or change is the color of the light so the independent variable would be different colors of light.

a physical change is being made.