Question

Kate gathered three boxes of the same size made of different materials: glass, clear plastic, and aluminum painted black. She placed them on a window sill in the sun for an hour and then measured the warmth of the air in each box. In this experiment, the types of box materials are a(n) _____.

A. independent variable
B. dependent variable
C. constant
D. control
99 points for correct anser

Answer 1

A. independent variable.

Step-by-step explanation:

In this experiment, the types of box materials are a(n) independent variable, which is when you purposely change things or control them, hoping for a specific outcome.