Identifying Variables

Question 1

Are test scores impacted by the amount of time spent sleeping the night before a test?

Answer 1

Independent: sleeping
Dependent: the result of test scores
(3) Controlled Variables: same tests, location of sleep, same student

Question 2

Is the growth of the plant affected by the amount of water?

Answer 2

Independent: water
Dependent: the growth of the plant
(3) Controlled Variables: same plant, sunlight, and pot