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Secret Clocks: Time
Secret Clocks Time
Author: Seymour Simon
Explains the occurrence of biological clocks, which, for example, tell birds when and where to migrate, plants when to unfurl their leaves, and which affect human beings in various physical and emotional ways.
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ISBN-13: 9780670628926
ISBN-10: 0670628921
Publication Date: 5/14/1979
Pages: 74
Edition: 1st
Reading Level: Ages 9-12
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Publisher: Viking Juvenile
Book Type: Hardcover
Other Versions: Paperback
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