View Spread Screws at Work What is a screw? How do we use screws in everyday life? Who invented the screw? Find out the answers to all these and more! RL Grades 2 IL Grades K-4 GRL L Details: Product: Library Bound Book eBook ISBN: 978-0-7660-6740-0 Author: Dawn LaMachia Copyright: 2016 Reading Level: Grade 2 Interest Level: Grades K-4 GRL: L 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