Question

To test the hypothesis that plants grow faster in green light, a student set up 3 of the same type of plants. She placed the first plant under a green light, the second plant under a regular light bulb, and the third plant under a red light.

All of the following are the constants in the above experiment except __________.


A. amount of water
B. plant type
C. light color
D. pot size

Answer 1

The answer is in the question.

Answer 2

What is the only difference between the plants?

Answer 3

You are testing if the plant are growing faster in different light color... so the answer most be light color... We usually say that the thing we wish to test is the variable... Other variables most be held constant else they might interfere with the experiment.

Answer 4

Thank You for the help.

Answer 5

No problem at all.