Clocks and rhythms
By: Alvin Silverstein, Virginia Silverstein, Laura Silverstein Nunn.
Contributors: Slverstein, Virginia B.; Nunn, Laura Silverstein.
Series: Science concepts
Publisher: Twenty-First Century Books
Published: 1999
Place of publication: Brookfield, Conn
Language: eng
Number of pages: 64
Subjects: Biological rhythms -- Juvenile literature; Biological rhythms
Description: Discusses the concepts of time and biological cycles, including the phases of the moon, the internal clocks of plants and animals, seasonal rhythms, and the aging process.
Notes: Includes bibliographical references (p. 60) and index.