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Water as a Resource
Investigation 3:
Sources of Water

This investigation will help you to:

Learn more about watersheds.
Learn more about water pollution.

To learn more about sources of water, visit the following web sites:

Watersheds

Know Your Watershed,
Perdue University
This site includes a library, glossary, a quiz to test your knowledge, factsheets and access to statistics on the watersheds in your area and numerous guides on a variety of topics.

Distributed Variability of Earth's Water Resources,
UNESCO
This article includes sections on continental, regional, and country differences, river basins and runoff to the oceans, and river runoff and groundwater.

Our Programs,
National Wildlife Federation
The National Wildlife Federation works on issues at the global, national and regional level. Learn about the work we do at our centers across the country. Watershed information is under "Water Resources".

Water Pollution

Answers to Questions on Water Pollution
Ask an Earth Scientist
Read an assortment of explanations to common water pollution questions.

A Primer on Water Quality,
USGS
This page answers a series of questions with short paragraphs. For example:

What is in the water?
What do we mean by "water quality"?
How is water quality measured?
How do human activities affect water quality?
What about bacteria, viruses, and other pathogens in water?
How can I find out more about my water quality?

Send all comments about this website to education@agiweb.org

Last updated: January 26, 2009

This project is supported, in part, by the National Science Foundation and the AGI Foundation. Opinions expressed are those of the authors and not necessarily those of the Foundation.

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Modules:

Water as a Resource Investigation 3: Sources of Water

This investigation will help you to:

To learn more about sources of water, visit the following web sites:

Water as a Resource
Investigation 3:
Sources of Water