Critical Thinking Activities - Chapter 5

Question 1. If you do not water your house plants, they will first wilt, then eventually die. Why do wilting and dying not occur at the same time?

Question 2. You can "peel" a raw egg without breaking the membrane or "melt" away the shell in vinegar. If you place it in a glass of water, it will swell in size until it breaks. Why is the flow one-way?

Answers are available to instructors in the Instructor's Manual.
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