Question

A scientist burns samples of beets and potatoes to compare how much energy each contains. How can the scientist make this a controlled experiment?

A. Not use any responding variables

B. Use beets that are much larger than the potatoes

C. Make sure the beets and potatoes give off the same amounts of energy

D. Use the same mass of beets and potatoes

Answer 1

D. Use the same mass of beets and potatoes

Answer 2

hope you help

Step-by-step explanation:

ans. C. Make sure the beets and potatoes give off the same amounts of energy