Get Moving! All About Muscles
Informational (nonfiction) 2,002 words, Level U (Grade 4), Lexile 840L.What do you and a bodybuilder have in common? Over 600 muscles! Yours may not be as big or as strong, but they're there. This nonfiction book explains the three types of muscles and the functions of each including the cardiac muscle. A detailed illustration explains how an electric charge causes the heart to contract. Photographs enhance the text.
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