Get to know screws /

Challen, Paul C. 1967-

Get to know screws / Screws by Paul Challen. - New York : Crabtree Pub., c2009. - 32 p. : ill. (chiefly col.) ; 29 cm. - Get to know simple machines . - Get to know simple machines. .

Includes bibliographical references (p. 32) and index.

What is a simple machine? -- Wrap it Up! -- Parts of a screw -- How a screw works -- Fastening and joining -- Fun with fastening! -- Raising and lowering -- Other uses of screws -- Screws and screwdrivers -- Working with screws -- Finding the pitch! -- Simple machines working together -- The history of screws -- Glossary.

Library Media Connection, November 2009 Resource Links, October 2009 Science and Children (N.S.T.A.), October 2009

Simple text, illustrations, and hands-on activities introduce children to simple machines, discussing screws and describing their various functions.

3.1. K-3 Follett Library Resources.

0778744698

2009004586


Screws.
Simple machines.

TJ1338 / .C44 2009

621.8/82 [E]