Which of the following describes a properly controlled experiment?

a. Five radish seeds are planted in an outdoor garden that gets lots of sun and water.

b. Fifteen turtles are fed iceberg lettuce and vitamins, while another fifteen turtles are fed only iceberg lettuce.

c. A poll is taken to determine the most popular Web site ever.

d. Twenty mice are fed doughnuts every day and their weight is measured after two months.

Question

Biology

Curtis Cochran

24 February, 00:31

Which of the following describes a properly controlled experiment?

a. Five radish seeds are planted in an outdoor garden that gets lots of sun and water.

b. Fifteen turtles are fed iceberg lettuce and vitamins, while another fifteen turtles are fed only iceberg lettuce.

c. A poll is taken to determine the most popular Web site ever.

d. Twenty mice are fed doughnuts every day and their weight is measured after two months.

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Answers (1)

Know the Answer?

Jairo Sweeney · Answer 1

Fifteen turtles are fed iceberg lettuce and vitamins while another fifteen turtles are fed only iceberg lettuce. B.

This is because you are keeping everything the same and only changing one element of the experiment.