Water cycle

Provides information about what happens to water underground and what effect that water has on the Earth.

An introduction to glaciers that explains how they are formed, how they move on land, how they have helped shape the earth, and how they have been affected by global warming.

Explains the important role water plays in plant and animal life, how water moves in animals, how plants turn water into food, and how animals have adapted to life in water.

Discusses the water cycle, including how pollutants in the atmosphere are changing life on Earth through global warming and acid rain.

Offers a brief introduction to the ocean's water, discussing tides, waves, beaches, the relation to climate, and other related topics.

Describes the different types of water in the world's rivers and lakes, explains how rivers helped shape the world, and explains the life cycle of a lake.