wheels

An exploration of wheels and axles, covering how they are used, their design, how they work, and more.

Learn about how motorcycles work and how people use them.

"Is it easier to lift toys with a wheel and axle or a wedge? Readers will learn about how simple machines work in this book for early readers"--Provided by publisher.

"Is it easier to move produce with a lever or a wheel and axle? Readers will learn about how simple machines work in this book for early readers."--Provided by publisher.

Explains how wheels are used.

Bill has a new bicycle with four wheels, but as he rides and rides he loses wheels one at a time until he finds out just how many he needs to have.

Examines the ancient origins of the wheel and explores the many inventions--from the spinning wheel to the phonograph--made possible by the simple machine.

Simple text and color photographs depict examples of wheels and axles in daily life and how they work.

Takes a look at all types of wheels.

"A hands-on approach introduces young scientists to wheels and axles. Science theory and practical, fun projects teach the physics and the technology behind this simple machine. Important science curriculum is explained through historical and contemporary examples of wheels and axles. Step-by-step projects range from the simple to the more challenging"--Provided by publisher.