wheels

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.

Provides quick simple machine experiments using seesaws, wheels, pulleys, and more.

Describes in simple terms the wheel and how it works.

Presents rules for being safe on bicycles, scooters, skateboards, and in-line skates, and discusses the importance of safety gear.

Looks at basic devices such as wheels, pulleys, levers, screws, and slopes, and suggests simple experiments and projects to demonstrate how they work.