Classroom visuals
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![Thunder and Lightning]()
Thunder and Lightning
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![Weather Chart]()
Weather Chart
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![Tropical Storm]()
Tropical Storm
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![Snowflakes]()
Snowflakes
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![Avalanche]()
Avalanche
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![Human Activities Can Cause Habitat Destruction]()
Human Activities Can Cause Habitat Destruction
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![Deforestation]()
Deforestation
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![Plant Seedling]()
Plant Seedling
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![Amazon Rainforest]()
Amazon Rainforest
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![Coniferous Trees]()
Coniferous Trees
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How Does It Rain? (labeled)
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How Does it Rain? (unlabeled)
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Convectional, Frontal, Relief Rainfall (labeled)
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Convectional, Frontal, Relief Rainfall (unlabeled)
Film info
Film summary
Deserts are regions that receive very little precipitation each year, but how are they formed? The unique characteristics of the world's deserts, from hot to polar.Key facts
- Deserts are the driest regions on Earth.
- Deserts can be stony or sandy, hot or cold.
- Deserts are formed in extremely arid atmospheres, e.g. at the equator where rainfall is scarce, in the shadow of mountain ranges.
- Polar deserts exist in the Antarctic and Arctic, where water is locked in permafrost and ice and there is little within the air.
Transcript
One third of Earth's land is covered by desert.
Areas which receive less than 25cm of precipitation each year.
Desert
Less than 25cm of precipitation a year
But how do deserts form?
There are four main places where they occur.
1. Near the Equator
Most deserts are found around the subtropics.
The dry cloudless air over …
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