An Easy-read fact book

Illustrations and simple text describe the inside of a helicopter, jobs done by helicopters, and the many types of helicopters including those used by the military.

Text and illustrations describe the flight characteristics and performance capabilities of fighter planes, bombers, transports, and other military aircraft.

Traces the development of man from Ramapithecus, a small ape-like creature, to Cro-Magnon man, who first appeared in Europe about 40,000 years ago.

Discusses fossils, what they can tell us, how we can use them, and where we can find them.

Describes in simple language the composition, formation, and structure of different types of rocks and minerals.

Presents basic facts about rain, snow, clouds, storms, and other components of weather.

Describes in simple language the characteristics and uses of minerals and gems.

An introduction to trees, including types of trees, their growth, reproduction, uses, and ecology.

Describes the early mammals that came to dominate the prehistoric world after the disappearance of the dinosaurs.

Discusses the nature and origin of volcanoes, their production of lava and ash, and their occurrence under water and in space, and describes some famous eruptions.