Smith, Norman F

Explores new and alternative sources of energy upon which mankind must depend in the future, as fossil energy sources are depleted, and explains the difficulties involved in gathering and converting this energy.

Describes how to select a science project, plan the investigation, choose equipment and test procedures, record data, draw conclusions, and report the results.

Text, diagrams and illustrations describe the thin ocean of air that surrounds the earth, explaining its function and its interrelationship with living things.

A simple explanation of solar energy and its uses.

Describes why the wind blows and how it can be harnassed through use of windmills to provide free, non-polluting energy.

Describes the origins, properties, and uses of a variety of metals.

Surveys the uses of energy sources as they have evolved from earliest days and emphasizes resultant pollution problems and the present energy crisis.

Discusses the invention and operation of simulators, how they are used to train people for responsible positions in aviation, transportation, the military, and spaceflight, and their possible use in the future.

Text and photographs discuss the processes by which scientists determine the age of their specimens, such as counting the number of tree rings, reading the strata, and using chemical analyses and the Carbon-14 test. Also looks at recent findings that may tell us how old the universe is.