Which statement about controlled experiments is true?

a. In a controlled experiment, all variables must be kept the same.

b. Controlled experiments cannot be conducted on living things.

c. A controlled experiment only tests one variable at a time.

d. Scientists always utilize controlled experiments.

Question

Cierra Peck

27 August, 09:04

+2

Answers (1)

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Keegan Hurst · Answer 1

Keegan Hurst 27 August, 09:52

0

The correct answer is A.

Which statement about controlled experiments is true?a. In a controlled experiment, all variables must be kept the same.b. Controlled experiments cannot be conducted on living things.c. A controlled experiment only tests one variable at a time.d. Scientists always utilize controlled experiments.