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A scientist claims that a certain chemical will make fabric waterproof. Which option describes a controlled experiment that will produce evidence that will support or refute her claim?
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A scientist claims that a certain chemical will make fabric waterproof. Which

option describes a controlled experiment that will produce evidence that will
support or refute her claim?

User Snowmonkey
by
4.8k points

2 Answers

6 votes

Answer: She adds different amounts of the chemical to the material and then puts them in the water

Step-by-step explanation:

User Victor Zadorozhnyy
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5.3k points
5 votes

Answer: One group of fabric is treated with the chemical, and the other group is not. Then each group is exposed to water.

Step-by-step explanation:

User Johnny John Boy
by
4.9k points
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