Wheels and Cranks (Machines in Action)
By Angela Royston.
Description
Wheels and cranks are simple machines that can be used to make other machines work. When you ride a bicycle, ride in a car, or use a school pencil sharpener you are using wheels or cranks, This book explains what wheels and cranks are and how they help you do everyday things. Topics include: What is a cam wheel? How does pedaling make bicycle wheels move? What are tire treads used for? - from Amzon
ISBN(s)
1575723247, 9781575723242
