500
Marissa notices that the length of her shadow is different at 8am than 1pm. Which of the following is a testable question she could use to begin an experiment.?
a. What is the effect of the length of the shadow on the height of a person.
b. What is the effect of temperature in degrees C on the time of day?
c. What is the effect of time of day on the length of a shadow.
d. If the time of day that affects the length of the shadow, then the shadow will be shorter.
What is the effect of time of day on the length of a shadow?