What Are Wheels and Axels? Book

Kids are fascinated with the way things work. Teach young readers to recognize simple machines and how they make our work easier. In this series, clear, concise text combines with supportive photographs to describe what each simple machine does. Simple examples help students relate the concepts to objects they see and use every day. This series explores and supports and standard "The Nature of Technology: Technology of Science," as required by Benchmarks for Science Literacy: Project 2061.