Desert Biomes



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3-Year Streaming
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Desert Biomes (17:00)
Item# 29771
©2002

Whether it’s a stretch of sand dunes in equatorial Africa or a cactus-covered plain in California, any place that receives less than ten inches of rain per year is considered a desert. By comparing and contrasting arid and semi-arid regions, this program provides students with a balanced picture of the Earth’s desert biomes. The program also investigates how the few plants and animals that inhabit these ecosystems survive the extreme temperatures and severe lack of water that characterize the desert environment. A viewable/printable instructor’s guide is available online. A Cambridge Educational Production. (17 minutes)


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Segments in this Video - (5)

1. Desert Biomes (03:07)
 Available for Free Preview

A desert biome is an ecological community of plants and animals, where the annual precipitation is less than 10 inches.

2. Rain Shadow Deserts (02:57)

As air moves inland from the ocean it is forced upward by the mountains causing it to condense and rain. When the air drops behind the mountain there is no moisture left, thus creating a desert.

3. Latitude Deserts (03:03)

Most deserts lie between 5 and 35 degrees north and south latitude. The equator gets a large amount of sun, which heats the air, causing it to rise. The air then circulates to the desert latitudes.

4. Plant Life in the Desert (03:49)

Plants in this region develop effective means to adapt to the heat and lack of moisture. They have hairs, spines, and a waxy coating to keep moisture in.

5. Animal Life in the Desert (02:38)

Animals in the desert adapt to heat and lack of moisture. Many animals migrate through the desert with the seasons.



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