How Ramps, Wedges and Screws Work (How Simple Machines Work)
Publisher: Gareth Stevens Publishing
Published: July 2006
Language: eng
Format: Paperback
Number of pages: 24
ISBN-13: 9780836873542
Subjects: Juvenile Engineering / Energy; Juvenile Nonfiction; Children's 9-12 - Technical; Children: Grades 2-3; Machinery; Technology - How Things Work/Are Made; Inclined planes; Juvenile literature