wheels

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.

From logs to rubber tires, hot air balloons to space probes, humans have made great strides in developing modes of transportation. Time lines, photographs, and eye-catching digital illustrations make this an engaging, visuals-centric look at history s planes, trains, and automobiles (and boats and bicycles, too).

Text and photographs showcase wheels, from their various parts, to how they help in everyday living.

Wheels play an important role in Sophie's discovery of the world from the time she is an infant in a buggy, until she can ride her own two-wheeled bicycle.

Provides an introduction to wheels and axles, examining how they work, different types, and includes experiments using wheels and axles.

"'Rolling Along' explores the benefits and uses of the wheel and axle. RobbO and RobbEE build a cart to make it easier to move a heavy load, and learn how the wheel and axle are also used for lifting and turning."--Provided by publisher.