Description
Levers are a simple machine that makes work easier. Young readers will learn what a lever is, how it makes work easier, the three classes of levers, and how they are used for both work and play.
Book Details
Format
eBook
Pages
25 pages
Language
English
Published
Aug 1, 2009
Publisher
Bellwether Media
Editions
2 editions
ISBN-10
1612115039
ISBN-13
9781612115030