Sadler, Wendy.

Using screws / Wendy Sadler. - Chicago : Raintree, c2005. - 32 p. : col. ill. ; 28 cm. - Raintree perspectives . - Machines inside machines . - Sadler, Wendy. Machines inside machines. .

Includes bibliographical references (p. 30) and index.

Introduction to screws, one of the simple machines.

ISBN: 1410914437 141091450X (pbk.)

Standard No.: 9781410914439

Subjects--Topical Terms:
Screws.
Simple machines.

LC Class. No.: TJ1338 / .S23 2005

Dewey Class. No.: 621.8/82