Question

1. experiment: a student investigates if miracle grow fertilizer makes plants grow faster.

iv:
dv:

Explanation:

In an experiment, the independent variable (IV) is what is changed or manipulated. Here, the student is manipulating whether or not the plants get Miracle - Grow fertilizer. The dependent variable (DV) is what is measured as a result of the change in the independent variable. In this case, it is the growth rate of the plants.

Answer:

IV: Miracle - Grow fertilizer (presence or absence).
DV: Plant growth rate.