Description
How are a boat propeller, water faucet, and spiral staircase alike? How can a screw keep your soda pop from getting flat? How can a screw help you plant a tree? Why might a large wrench work better than a small one? This title shows you how different kinds of these simple machines are all around you to make your work and play easier.
The most complicated machines often rely on a few simple principles of technology, such as wheels, springs, screws, ramps, and wedges. This series explores these technologies by relating them to common machines in our everyday world from bedsprings to skateboards to zippers. Numerous fact files offer readers fast facts and other pertinent information.
Heinemann Educational Books
Juvenile Nonfiction
Science & Nature
Edition: Physics
Keywords: Science & Nature
