Wheels and Axles in My WorldBook - 2006
This engaging volume introduces emergent readers to the wheel and axle. Photo illustrations and clear language explain how these simple machines work and where they are used. The book also reminds children how difficult life would be without this 5000-year old discovery and why wheels need to be round.
Publisher: New York : Rosen Publishing Group's PowerKids Press, c2006.
Characteristics: 24 pages :,color illustrations ;,19 cm.