Pulleys (Blastoff! Readers Level 3 Seasons) by Kay Manolis
	List Price:   $21.95 Unit Price:   $17.56 You Save:   $4.39 (20%) ISBN-10:   1600143245 ISBN-13:   9781600143243 Publisher:   Bellwether Media; Blastoff! Readers Series:   Simple Machines Category:   Beginning Readers, Science Books Pub. Date:   January 2010 Pages:   24 Format:   Library Binding Ages:   5 to 10 Grades:   K to 3
Description/Notes
Pulleys are simple machines used to lift and move loads. Builders use pulley systems to lift tools or materials up high and elevators go up and down with the help of pulleys. Kids will learn how pulleys make work easier and how they are often part of complex machines.