Using Ramps and Wedges (Machines Inside Machines)
Publisher: Raintree
Published: June 30, 2005
Language: eng
Format: Library Binding
Number of pages: 32
ISBN-13: 9781410914477
Subjects: Juvenile Nonfiction; Children's Books/Ages 4-8 Nonfiction; Children: Grades 2-3; Machinery; Technology - How Things Work/Are Made; Juvenile literature; Simple machines