The simple facts of simple machines /

Describes the simple machines: lever, pulley, wedge, screw, inclined plane, and wheel and axle, and explains how they are utilized to make work easier.

Bibliographic Details
Main Author: James, Elizabeth
Other Authors: Barkin, Carol, Dorn, Daniel, Stan, Susan
Format: Book
Language:English
Published: New York : Lothrop, Lee & Shepard, [1975]
Subjects:
Description
Summary:Describes the simple machines: lever, pulley, wedge, screw, inclined plane, and wheel and axle, and explains how they are utilized to make work easier.
Item Description:Includes index.
Physical Description:64 pages : illustrations ; 22 cm.
ISBN:0688416853
0688516858 (lib. bdg.)