Planet Earth

Describes how coal, oil, and natural gas allow people to do everyday activities.

Describes how natural processes build solution caves, lava tubes, and sea caves.

Explores the role of life in shaping the Earth and its future. (60 min.).

Discusses the flood control problem on such major river systems as China's Yellow River, the Mississippi, the Ganges, and the Nile. Presents some of the world's major dams, and some disastrous floods.

Discusses the theory of glaciers and of the Ice Age as propounded by Venetz and later espoused by Agassiz, and discusses modern glaciers and explorations of the polar ice cap.

Discusses meteorological phenomena and the modern problems arising from pollution. Presents efforts to harness wind energy.

Contains photographs, text, and six essays on the solar system.

Text and pictures explore some of the world's great caves and cavern formations.

Contains photographs, text, and four essays on the areas at the edge of the sea.

Contains photographs, text, and five essays on the uses of metals.