Synopses & Reviews
Synopsis
Focusing on the six simple machines -- levers, wheels and axles, pulleys, screws, inclined planes, and wedges -- this fun and informative new series introduces young readers to several basic concepts of physics -- such as work, force, gravity, and friction. Includes easy-to-do experiments, colorful photographs, clear text, and fun activities.
We've all seen screws, but how do they work? Why is it easier to screw something into something than to simply push it in? With basic hands-on experiments and clear descriptions, this simple machine is explained.
Table of Contents
Be a word detective -- Work -- Machines -- What is a screw? -- How screws help us -- Different kinds of screws -- On sharing a book.