biotic communities

Describes the characteristics of tundra biomes, looks at where they are located in the world, discusses why tundra environments are important, and identifies some of the plants and animals that live in them. Includes an activity.

Describes the characteristics of desert biomes, looks at where they are located in the world, discusses why desert environments are important, and identifies some of the plants and animals that live in them. Includes an activity.

" ... In Marine ecosystems, students will explore saltwater environments -- from shorelines to coral reefs -- and learn about the fish, plants, mammals, and insects that depend on each other for survival in this aquatic biome. Examine concepts such as salinity and currents, and find out about the three major life zones found in ocean waters. A fun, hands-on experiment allows students to discover how brine shrimp have adapted to changes in salt concentration, while a visit with a marine biologist on the Chesapeake Bay examines the fascinating life cycle of the blue crab.

Contains video clips and animations that examine different ecosystems and habitats; explaining adaptation, reproduction, food chains, and the relationships between living things in a biotic community.

An interactive game where Bill Nye the Science Guy asks multiple choice questions on population and ecosystem. For two players or two teams, with plays up to 30 minutes, the game contains over 150 questions that are completely randomized, so students can play multiple times without seeing the same questions.

Examines the relationships between living things, focusing on the interdependency of animals, with specific examples.

Briefly examines the nutrient and energy cycle on Earth, beginning with how energy from the sun gets turned into energy for plants, and how that energy is transferred to animals and humans.

Providing explanations of the damage done by invasive species and solutions to their spread, readers discover the delicate nature of the habitats they live in.

This program explains ecosystems.