Keep it simple
By: Rogers Robert
Series: Little Celebrations; Little Celebrations
Publisher: Celebration Press
Published: 2001
Place of publication: Parsippany, NJ
Language: eng
Number of pages: 24
ISBN-13: 9780673596208
Subjects: Simple machines; Juvenile literature; Agriculture
Description: Explains how farmers used simple machines such as the wheel and axle, fulcum andlevr, and inclined planes to help them get their produce to market.
Notes: Stage 3B, Book 21.