Answer
O (observation)
Work Step by Step
"Drinking coffee at night keeps me awake" is an observation.
Chemistry: An Introduction to General, Organic, and Biological Chemistry (12th Edition)
by Timberlake, Karen C.
Published by
Prentice Hall
ISBN 10:
0321908449
ISBN 13:
978-0-32190-844-5
Chapter 1 - Section 1.2 - Scientific Method: Thinking Like a Scientist - Study Check 1.1 - Page 5: a
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