Screws
By: Michael De Medeiros
Series: Simple machines; Simple machines (AV℗ø by Weigl)
Publisher: AV2 by Weigl
Published: 2014
Place of publication: New York, N.Y
Language: eng
Number of pages: 24
ISBN-13: 9781621274278; 9781621274339
Subjects: Screws; AV2 books; Simple machines; Juvenile literature
Description: "Presents information on simple machines with a focus on screws. Explains what a screw is, how screws work, and includes examples of past and present uses. Intended for third to fifth grade students"--Provided by publisher.
Notes: Includes index.
Table of contents: title: What is a screw?; title: Sharp threads; title: Pushing ahead; title: Screwy gears; title: Nuts and bolts; title: Drilling bits; title: Early screws; title: Gaining an advantage; title: Surfing simple machines; title: Science in action; title: What have you learned?