Question

Students set up a controlled experiment. They put five

crickets in each of three identical containers. They set one
container to 15°C, one to 20°C, and one to 25°C. Then they
count the number of cricket chirps in each container during
1 hour.
What are two constants in this experiment?
A. The temperature of each container
B. The number of crickets in each container
C. The number of cricket chirps
D. The kind of containers used

Answer 1

Step-by-step explanation:

Constants do not vary ..... they stay 'constant'

so

A .....no ...different temps

B.....constant

C ......no the # chirps vary

D.....constant