Hewitt, Sally, 1949-

Machines we use / Sally Hewitt. - 1st American ed. - New York : Children's Press, 1998. - 30 p. : col. ill. ; 25 cm. - It's science! . - Hewitt, Sally, 1949- It's science!. .

Includes index.

Examines various simple machines and how they are used to make work easier and provides activities using wheels, levers, pulleys, screws, and more.

ISBN: 0516207938 (reinforced binding) 0516263927 (pbk.)

LCCN: 97002154 /AC

Subjects--Topical Terms:
Machinery.
Simple machines.

LC Class. No.: QC73.4 / .H49 1998

Dewey Class. No.: 621.8/11