An introduction to the characteristics and kinds of light and to color, which is caused by light. Includes study questions, activities, and experiments.
Discusses, in text and illustrations, the characteristics of different kinds of rivers, the plants and animals that inhabit them, and their importance to the lands through which they flow. Also describes some of the major rivers of the world and includes suggestions for projects, further reading, and a glossary.
Describes the erosion, volcanic activity, climates, wildlife, and other aspects of the mountains of the earth and looks at individual mountain chains such as the Himalayas, Andes, and Rockies.
Discusses, in text and illustrations, the characteristics of deserts, where they are located, and the plants, animals, and people that inhabit them. Includes suggestions for projects, further reading, and a glossary.
Photographs and illustrations describe various volcanoes around the world including Paricutin in Mexico, Mount St. Helens in Washington, Mauna Loa in Hawaii, and Krakatoa in Indonesia.