Put Inclined Planes to the Test by Sally M. Walker
	List Price:   $8.95 Unit Price:   $7.16 You Save:   $1.79 (20%) ISBN-10:   0761378650 ISBN-13:   9780761378655 Publisher:   Lerner Classroom Category:   Science Books Pub. Date:   August 2011 Pages:   40 Format:   Paperback
Description/Notes
What do staircases, dump truck beds, and ramps have in common? All of them are inclined planes! Inclined planes are simple machines. They help us to do jobs more easily. But dont take our word for it. Put inclined planes to the test with the fun experiments youll find in this book.