ecology

Text and photographs look at ecology, focusing on climate, ecosystems, conservation, and other topics.

Text and over one thousand illustrations offer information on ecology, covering biomes, population, ecosystems, ocean life, humans, and other related topics.

Provides step-by-step instructions for twenty-two science experiments about ecology.

Describes the oceans of the world, explains why people go to sea, and shows what to do to survive in an emergency on the sea.

Photographs and simple text examines different glaciers around the world, how they are formed, their effects on surrounding landscapes, life around glaciers for people and animals, and other related topics.

Claire, nervous about starting a new school soon, starts to grow apart from her friend Jet, who takes photographs with the popular kids, and when Claire befriends Sky, who lives in the Lovesick Lake community, she learns about the actions of some polluters, which causes the three girls to work together for a solution.

Describes the formation, characteristics, and plant and animal life of different types of forests.

Provides overviews of four major biomes of Earth, covering rivers and streams, seashores, tundras, and wetlands, discussing how they were formed, climate, elevation, growing season, plants, animals, food webs, economy, and other related topics, and including sidebars with facts and related information as well as recommended readings, color photographs, illustrations, and maps.

Provides overviews of four major biomes of Earth, covering grasslands, lakes and ponds, oceans, and rain forests, discussing how they were formed, climate, elevation, growing season, plants, animals, food webs, economy, and other related topics, and including sidebars with facts and related information as well as recommended readings, color photographs, illustrations, and maps.

Contains 264 alphabetically arranged articles that provide information about various aspects of pollution, covering pollution of the air, land, space, and water, as well as related concepts, issues, research, and legislation. Includes photographs and illustrations.