Compost Office

This interactive activity from Keep America Beautiful, Inc. uses illustrated text and a game to explain why it is important to compost, the science involved, and the perfect recipe for decomposition.

Earth Water Filter

In this video segment adapted from ZOOM, cast members try to make the most effective water filter. They experiment with filtering dirty, salty water through different combinations of sand, gravel, and a cotton bandana.

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Erosion and Weathering

Erosion and weathering may be caused by a variety of factors including wind and water. This still collage produced for Teachers' Domain features images of rock, soil, and beach erosion.

Grass Bridge

In this video segment adapted from NOVA, watch residents of the Peruvian Andes build a suspension bridge made entirely of grass.

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Habitat and Diet in Racehorse Development

This animated segment from KET's Electronic Field Trip to a Horse Farm demonstrates one of the ways calcium, a naturally occurring mineral derived from limestone, enters a horse's diet to give it an advantage in bone strength.

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Minerals in Our Environment

What minerals are in your toothpaste? A pencil? A telephone? This interactive resource adapted from the U.S. Geological Survey illustrates the variety of minerals used in everyday items found in kitchens, bathrooms, offices, and yards.

Organic Farming: Conserving Topsoil

Against the backdrop of the devastating 1930's Dust Bowl, this video segment adapted from Interactive NOVA profiles an organic farmer and the techniques he uses to conserve topsoil.

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Underwater Hotspots

This video segment, adapted from Jean-Michel Cousteau: Ocean Adventures, outlines the geologic process surrounding the formation of islands in the South Pacific.

Virtual Cave

This interactive resource adapted from The Virtual Cave by Dave Bunnell, presents images of various features found in solution caves and includes detailed information on how these features are formed and where they occur.

Water Conservation: Israel

This video segment adapted from Last Oasis shows how Israel has attempted to meet the challenge of providing enough water for agricultural needs. Featured are two methods: recycled water and drip irrigation.

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