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Article
Other

The Hydrological Cycle an Human Impact on It. [Pdf]

For Students 9th - 10th
The hydrological cycle is usually called a recurring consequence of different forms of movement of water and changes of its physical state on a given area of the Earth. The role of different processes in the hydrological cycle and their...
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Website
US Geological Survey

U.s. Geological Survey: Rain

For Students 9th - 10th
At this site from the U.S. Geological Survey you can find out what makes rain such a valuable resource. Included is a chart that tells how much rain different cities in the United States receive. Click Home to access the site in Spanish.
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Unit Plan
CK-12 Foundation

Ck 12: Earth Science: Coastal Pollution

For Students 9th - 10th
[Free Registration/Login may be required to access all resource tools.] How pollution creates dead zones in the ocean.
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Unit Plan
CK-12 Foundation

Ck 12: Earth Science: Coastal Pollution

For Students 9th - 10th
[Free Registration/Login may be required to access all resource tools.] How pollution creates dead zones in the ocean.