Howell, Laura

Explains the natural forces behind the weather and investigates the conditions that may be bringing about changes in the climate.

Looks at the different factors that determine Earth's weather; identifies various climate zones; examines clouds, winds, air masses, extreme weather, and other topics; and considers some of the reasons why weather is changing and the possible threat that poses to the future of life on Earth.

Photographs, illustrations, and text introduce key concepts in animal biology. Descriptions of Web sites are included.

Provides information on the various parts of animal bodies and how they are adapted to the ways different kinds of animals live and move, discusses environmental issues, and recommends related Web sites.

Provides information on outer space, the solar system and its planets, and the structure and geography of the Earth, and recommends related Web sites.

Provides information on plant structures, how plants survive and meet their needs, and related topics, and recommends related Web sites.

Provides practical advice for bringing home a guinea pig as a pet, and describes how to keep a guinea pig happy and healthy, and answers common questions for pet owners.

Discusses proper care of gerbils as pets.