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Home > Science > Earth Science > Hydrology

Virtual River
Here you will find three interactive exercises designed to help you learn about river processes like discharge, flooding, and erosion.

Blue Thumb Word Search
Water Word Search..

The Story of Drinking Water
The Egyptians were the first people to record methods for treating water.

The Water Treatment FAQ
Water treatment FAQ and questions

Estimated water use in the U.S.
Water use, questions and answers. Do you need to know how water is used in the United States. This site will give you answers to many of your water related questions.

American Rivers
We are a non-profit organization dedicated to protecting and restoring America's rivers.

Blue Thumb Bloopers
Embarrassing moments in the life of a water drinker..

Water Topics
directory provides an alternate way to browse USGS science programs and activities. Explore within each topic by data, news, images, video, social media, and much more.

The Hydrologic Cycle: online meteorology guide
Water is the source of all life on earth. The distribution of water,is quite varied; many locations have plenty of it while others havevery little. The circulation and conservation of earth's water is called the hydrologic cycle.

Water purification FAQ Frequently Asked Questions
Water purification generally means freeing water from any kind of impurity it contains, such as contaminants or micro organisms. Water purification is not a very one-sided process; the purification process contains many steps. The steps that need to be progressed depend on the kind of impurities that are found in the water. This can differ very much for different types of water.

Learning to be Water Wise & Energy Efficient-An Education Program
A water and energy conservation education program.

Rivers & Streams
Topics on rivers and streams.

EPA's Surf Your Watershed
Surf Your Watershed - Environmental Protection Agency's effort to provide a one stop shopping center for geographically relevant information.

River Watch Network
rivers water monitoring community conflict resolution watershed organizing environmental environmental justice native american benthic macroinvertebrates biological monitoring river ecology river monitoring stream monitoring habitat assessment or monitoring water testing volunteer monitoring water quality school science

Water Cycle for Schools
Interactive diagram allows you to "mouse around" the parts of the water cycle and view explanations, pictures, and more online. The diagram is available for three levels of students.

Rivers by Length