Screws

By Jerry Miller

Book Overview

The answers to what screws are, why we need them, and many more are provided for curious readers. Screws help change a turning motion into an up-and-down movement. Screws, nuts, and bolts help keep many items in our world together. Readers will gain a valuable understanding of these simple machines through accessible text and colorful photographs. A comprehensive glossary and eye-catching graphic organizer aid readers in their exploration of these important science concepts.

• Format: Library Binding
• Language: English
• ISBN: 1433981467
• ISBN13: 9781433981463
• Release Date: January 2013
• Publisher: Gareth Stevens Publishing
• Length: 24 Pages
• Weight: 0.35 lbs.
• Dimensions: 0.3" x 7.0" x 7.1"
• Age Range: 6 to 8 years
• Grade Range: Grades 1 to 3