Appeal to students' fascination with how things work. Clear, concise text combines with supportive photographs to help young readers recognize and understand simple machines in their world. Each book features a contents page, a glossary and a list of additional books and internet sites on the topic. (set of 6 titles)

Book Titles:
What Are Inclined Planes? - G
What Are Wheels and Axles? - F
What Are Wedges? - G
What Are Screws? - G
What Are Pulleys? - F
What Are Levers - G