Question 9 • PA Human Anatomy & Physiology A 2026-2027 SMITH IC
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?
Answer
s
size of the box
t
temperature of the box
t
timing of the cricket’s chirps
v
volume of the cricket’s chirps
Explanation
The dependent variable is what the student measures to see whether it changes when the temperature is changed. The student changes the box’s temperature and records the timing of the chirps, so the dependent variable is the timing of the cricket’s chirps.
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