Rain to Dams

by Clint Twist

Published 22 February 1990
Discusses the properties and sources of water and its uses, including newer applications such as hydroelectricity. Includes experiments and projects throughout.

Reproduction to Birth

by Clint Twist

Published 25 April 1991
Covers the different methods of reproduction of various species, genetics, heredity, and the implications of genetic engineering, including appropriate hands on projects.

Ice Caps & Glaciers

by Clint Twist

Published 1 April 1993
Describes what ice from the polar regions can tell us about past climatic conditions and our changing atmosphere and examines the role of water in its solid state within the environment. Includes projects and other hands-on activities.

Jungles and Forests

by Clint Twist

Published 1 April 1993
Examines the climatic conditions in a rain forest and their effects on the variety of plant and animal life found there. Includes related projects.