machinery

Simple text describes street cleaning machines, what they do and how they work.

Teaches concepts of simple machines through a story in which the son of the famous Big Bad Wolf uses scientific knowledge to catch and eat the daughters of the three original little pigs, and includes activities.

Looks at the many different flying machines, as well as the various activities taking place at an airshow.

Looks at the many different machines, as well as the various activities taking place on the farm.

A guide to historical and current developments in the field of machinery, including mass production, computers, robots, micro-engineering, and communications technology.

Describes different kinds of trucks, such as a crane, backhoe, fire engine, tractor, and others. Includes a related story and puzzle.

Text and photographs introduce various large machines with wheels, including a snowblower, a trash truck, a ready-mix truck, and a platform loader.

Describes how machines work and the many kinds of things they can do.