How Levers Work (How Simple Machines Work)
Publisher: Weekly Reader Early Learning Library
Published: August 30, 2006
Language: eng
Format: Library Binding
Number of pages: 24
ISBN-13: 9780836873474
Subjects: Juvenile Engineering / Energy; Juvenile Nonfiction; Children's Books/Ages 9-12 Nonfiction; Children: Grades 2-3; Technology - General; Technology - How Things Work/Are Made; Juvenile literature; Levers