Question

A student sets up an experiment to determine whether temperature affects how many times a cricket chirps per minute. She sets up one tank with crickets at room temperature, one at a colder temperature, and one at a warmer temperature. All of the crickets are the same type and receive the same food and water. Each day at noon the student counts how many times the crickets at different temperatures chirp in one minute. What is the dependent variable?

A. Temperature
B. Type of crickets
C. Food and water
D. Number of chirps per minute

Answer 1

The dependent variable in this experiment is the number of chirps per minute, while the independent variable is the temperature. The experiment aims to observe how temperature affects the chirping rate of the crickets.

Step-by-step explanation:

The dependent variable in this experiment is the number of chirps per minute. The student is observing how temperature affects the chirping rate of the crickets. The independent variable is the temperature, as the student is manipulating the temperature by setting up different tanks at different temperatures. The other variables like the type of crickets, food, and water are kept constant to ensure that temperature is the only factor affecting the chirping rate.