Douglas, Lloyd G.

What Is a Lever? - New York Children's Press c2002 - 24 pages - Simple Machines .

Added to collection April 2006 from Scholastic Book Fair profits.

Includes bibliographical references (p. 23) and index. Illustrations and text describe different examples of the use of simple machines known as levers.

ISBN: 0516240226 (paper)

Subjects--Topical Terms:
Levers
Simple Machines
Grade 2 science theme relative position and motion