Screws
By: by Lyn Sirota ; illustrated by Reginald Butler
Contributors: Butler, Reginald
Publisher: The Child's World
Published: 2013
Place of publication: Mankato, Minn
Language: eng
Number of pages: 24
ISBN-13: 9781614732761
Subjects: Screws; Juvenile literature
Description: Presents a look at screws, explaining how these simple machines work and describing some common examples that have been used throughout history.--
Notes: Includes index.
Table of contents: title: Tools and machines --; title: A kind of ramp --; title: Parts of a screw --; title: Spinning circles --; title: Thread power --; title: Pitch --; title: Screws and bolts --; title: In complex machines --; title: Screws everywhere.