Question

christopher states the hypothesis that a mouses body temperature decreases as the air temperature around the mouse decreases. he wants to design an experiment to test his hypothesis. what should the independent (test) variable be in this experiment? the air temperature the mouses body temperature the amount of time for the experiment the mass of the mouse

Explanation:

The independent variable is the factor that is changed or manipulated in an experiment. Here, Christopher wants to see how the mouse's body - temperature changes with air - temperature changes. So, he will manipulate the air temperature.

Answer:

A. the air temperature