View Spread Wheels and Axles at Work When was the wheel invented? How are wheels used every day? How do wheels and axles work together? Find out the answers to these questions and more! RL Grades 2 IL Grades K-4 GRL N Details: Product: Library Bound Book eBook ISBN: 978-0-7660-6748-6 Author: Dawn LaMachia Copyright: 2016 Reading Level: Grade 2 Interest Level: Grades K-4 GRL: N Dewey: 621.8'11--dc23 Pages: 24 Dimensions: 8 1/2" x 7 1/8" Books and web sites for further information, Index, Words to Know, Sidebars, Step-by-Step Experiments Library Bound Book — $25.60 / $19.20 eBook — $25.60 / $19.20