Describes the invention and function of such things as a combine harvester, a laser, an electronic microscope, a missile, and plastic. Includes several related activities.
Describes the evolution of land, sea, and air transportation including high-speed trains, submarines, and supersonic airplanes; includes instructions for science experiments relating to these vehicles.
Explains how early inventions, including those of the sundial and compass, as well as more recent discoveries, have helped scientists explore outer space; includes science experiments relating to these instruments.
Traces the history of medicine from early surgery and the discovery of radioactivity to progress in modern medicines and genetic engineering. Includes some simple activities.
Explains the operation of common devices such as the doorbell, alarm clock, photocopier, radio, television, and computer; includes instructions for science experiments relating to these.
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