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Heart: Our Circulatory System
Heart Our Circulatory System
Author: Seymour Simon
The heart is a most incredible pump. About the size of a fist and weighing only about as much as one of your sneakers, in an average lifetime a heart will beat over two thousand million times without stopping for rest or repair. The heart pushes a stream of blood through sixty thousand miles of arteries, capillaries, and veins, a journey that ca...  more »
ISBN-13: 9780606247412
ISBN-10: 0606247416
Publication Date: 8/1999
Reading Level: Ages 4-8
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Publisher: Turtleback Books Distributed by Demco Media
Book Type: Hardcover
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