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Rivers and Streams
Only about three percent of Earth’s water is freshwater. Of that, only about 1.2 percent can be used as drinking water; the rest is locked up in glaciers, ice caps, and permafrost, or buried deep in the ground. Most of our drinking water comes from rivers and streams. From each river’s source, the water meanders through the landscape meeting up with other streams and shaping civilization as we know it. This water is the lifeline of ecosystems around the world. Teach your students about the Earth’s rivers and streams with the resources in this collection.
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delta
Deltas form as rivers empty their water and sediment into another body of water, such as an ocean, lake, or another river.
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Lifeline to a Desert Delta
Use this map to help students learn more about the Okavango Delta in Africa, including how it was formed and why it is important to the people and wildlife of southwestern Africa.
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Rivers and Streams
Only about three percent of Earth’s water is freshwater. Of that, only about 1.2 percent can be used as drinking water; the rest is locked up in glaciers, ice caps, and permafrost, or buried deep in the ground. Most of our drinking water comes from rivers and streams. From each river’s source, the water meanders through the landscape meeting up with other streams and shaping civilization as we know it. This water is the lifeline of ecosystems around the world. Teach your students about the Earth’s rivers and streams with the resources in this collection.
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-
delta
Deltas form as rivers empty their water and sediment into another body of water, such as an ocean, lake, or another river.
-
Lifeline to a Desert Delta
Use this map to help students learn more about the Okavango Delta in Africa, including how it was formed and why it is important to the people and wildlife of southwestern Africa.