Answer
Sentences 3 is an experiment
Work Step by Step
Sentences 3 is an experiment because they are stating what they are trying to prove and how will they prove it and experiment is the actual testing of the hypothesis.
Chemistry (12th Edition)
by Wilbraham
Published by
Prentice Hall
ISBN 10:
0132525763
ISBN 13:
978-0-13252-576-3
Chapter 1 - Introduction to Chemistry - Standardized Test Prep - Page 31: 10
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