The Horn Book Guide

SCIENCE

Silverstein, Alvin , Nunn, Laura Silverstein , Silverstein, Virginia

Clocks and Rhythms

64 pp. | Lerner/Twenty-first Century | April, 1999 | Library ISBN 0-7613-3224-3 $$23.40

(3) 4-6 Science Concepts series. While some attention is paid to ways in which humans measure time, this informative book focuses on natural demarcations in time--daily, monthly, and seasonal--and the rhythms that humans and animals experience that align with (or interrupt) these periods. Additional factual information can be found in text boxes throughout. Color photographs illustrate the text. Bib., glos., ind.

Reviewer: Danielle J. Ford