What Is a Lever? (Welcome Books)
Publisher: Children's Press (CT)
Published: September 2002
Language: eng
Format: Library Binding
Number of pages: 24
ISBN-13: 9780516239637
Subjects: Technology - Machinery; Juvenile Nonfiction; Children's Books/Ages 4-8 Nonfiction; Juvenile literature; Levers; Children: Grades 1-2; Children: Kindergarten
First sentence: A lever is a simple machine.