Clark, John Owen Edward

Presents a series of time lines that note the dates and inventors of key events and discoveries in the history of science and technology from prehistory to the early twenty-first century, and includes articles on some of the most important achievements, with photographs, illustrations, and maps.

Contains alphabetically arranged entries that define biology terms; and includes animal and plant classification charts and a list of Nobel Prize winners in physiology or medicine.

Describes various minerals and where they are found; mining methods and machinery; and the need to conserve resources. Features projects throughout.

Discusses plate tectonics and the causes of earthquakes and volcanoes, the features and formation of other geographical areas, and possible future changes in the earth's surface. Features projects throughout.

Discusses the composition and structure of the Earth's atmosphere and such atmospheric phenomena as air pressure, weather, winds, pollution, and the greenhouse effect. Includes related projects.

Provides a study of matter: what it is, what its properties are, and how it relates to the forms of energy encountered in nature.