Find out... what muscle never gets tired, why your ears pop when you're on an airplane, fun ways to move your body, what the human body has in common with other animal bodies, how your body works as a team to help keep you healthy .... And much, much more in the Big Book of Human Body! It also includes Search & Find pages, mazes, word searches, and other fun activities. Impress family and friends with your knowledge of the human body!
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