Question

1. ms. hoose is conducting an experiment to see if the amount of light plants are exposed to will affect how big they grow. what would be an example of a controlled variable in her experiment?

a. amount of light
b. the size of the pots the plants are in
c. how big the plants get
d. the amount of soil placed in the pots
answers b. and d.

Explanation:

A controlled variable is kept constant in an experiment to ensure that only the independent variable (amount of light here) affects the dependent variable (plant growth). The size of the pots and the amount of soil can influence plant growth and should be controlled. The amount of light is the independent variable and how big the plants get is the dependent variable.

Answer:

E. answers B. and D.