Petersen, Christine

Describes how wind occurs in nature and how it can be used to produce electricity, both now and in the future.

Looks at how water has shaped nature, describes how the power of water can be harnessed for electricity, and discusses some of the benefits and drawbacks of using water-generated energy.

Describes how the sun's energy supports all living things on Earth and how it is used as a power resource to create electricity.

Describes some of the earth's natural resources, their importance, and how they can be safeguarded.

Discusses various forms of energy derived from renewable resources, such as wind power, solar power, water power, geothermal energy, and biofuels.

Discusses how human use of land and increasing population have threatened natural landscapes and describes the establishment of national parks as a means of preserving these resources.

Explores attention-deficit/hyperactivity disorder; discussing what it is, diagnosis, causes, treatments, healthful habits, and other related topics.

Text and color photos present an overview of the U.S.'s land, history, peoples, economy, and culture. Also includes lists of related books, organizations, and Web sites.

Text and color photos present an overview of Cuba's land, history, people, education, economy, and culture. Also includes lists of related books, organizations, and Web sites.

Explores the life of a colonial blacksmith and his importance to the community, as well as everyday life, responsibilities, and social practices during that time.