Description
Readers learn how this simple machine makes it easier to lift, lower, and open things. They learn the three types of levers: first-class, second-class, and third-class. By the end of the book, readers know the difference between complex and simple machines and how levers are used in everyday life to make work easier.
Book Details
Format
Kindle
Pages
24 pages
Language
English
Published
Jan 1, 2014
Publisher
The Child's World
Editions
2 editions
ISBN-10
1631431307
ISBN-13
9781631431302