Question

a student does an experiment for a science fair to study whether temperature affects the timing of a cricket’s chirps. the student keeps a cricket in an enclosed box that is heated to different temperatures each day for twelve days. the student records the cricket’s chirps by using a sound - activated microphone so the timing of the chirps can be measured. which is the dependent variable in this experiment?
○ size of the box
○ temperature of the box
○ timing of the cricket’s chirps
○ volume of the cricket’s chirps

Explanation:

To identify the dependent variable, we recall that the dependent variable is what is being measured or observed and depends on the independent variable. In this experiment, the student is studying how temperature (independent variable) affects the timing of the cricket’s chirps. The “size of the box” is a constant (not a variable here), the “temperature of the box” is the independent variable (being manipulated), and the “volume of the cricket’s chirps” is not what’s being studied. The “timing of the cricket’s chirps” is what’s being measured and depends on temperature.

Answer:

C. timing of the cricket’s chirps