ecology

Documents the life cycle and ecosystem of the giant saguaro cactus and the desert animals it helps to support.

Explores the structures and functions of organisms to adapt and survive.

Describes the properties and uses of soil and its importance to life on Earth.

Describes different types of mountains and how they are formed, the plant and animal life that exists on mountains, the use of mountains for farming, tourism, and industry, and the efforts to protect these unique environments.

Describes the work of Meg Lowman in the rainforest canopy, an area unexplored until the last ten years and home to previously unknown species of plants and animals.

When he has a dream about a future Earth devastated by pollution, Walter begins to understand the importance of taking care of the environment.

Presents wildfires as neither good nor bad but as part of the endless cycle of change in forests and grasslands.

Discusses recycling and provides information and instructions for making art projects from a variety of recycled materials.

Examines the plants and animals of the Amazonian rain forest.

Documents the life cycle and ecosystem of the giant saguaro cactus, and introduces the desert animals it helps support.