Looks at water pollution, its causes and impact, what individuals and governments can do to combat it, and the process of treating wastewater.

Excellent site covers all types of water pollution. Hundreds of links including books, articles, organizations, specific topics.

Explore water pollution in surface water and groundwater and investigate the treatments for both. Also, check out what happens when salt water infiltrates the fresh water sources.

[Free Registration/Login may be required to access all resource tools.] Water pollutants can have an effect on both the ecology of ecosystems and on humans. As a result of water pollution, humans may not be able to use a waterway for...

[Free Registration/Login may be required to access all resource tools.] Describes the sources of water pollution, such as municipal, industrial, and agricultural.

[Free Registration/Login may be required to access all resource tools.] Water pollution is a serious issue facing hundreds of millions of people world-wide, having harmful effects on the lives of those people. Learn more about sources of...

Welcome to the Water Pollution Guide, where you can find useful information about the sources of water pollution and how they can be treated.

This site, from an archived Smithsonian exhibit, describes and illustrates the effects of toxic materials on wildlife in bodies of water.

Activity shows the link between land use activities within a watershed and water quality.

Water pollution occurs when a body of water is adversely affected due to the addition of large amounts of materials to the water. The sources of water pollution are categorized as being a point source or a non-source point of pollution....

Read about the different types of water pollution and the harm it can cause. Learn about oil spills how they are cleaned up, and how you can help prevent water pollution. Additional links point to other topics relevant to the study of...

Water pollution is the contamination of water resources by harmful wastes or toxins. This type of pollution can be dangerous to animals and plant populations in and around lakes, rivers, polluted groundwater areas or oceans, and can pose...

Resource provides information on environmental issues of water pollution with an established learning objective. A case study about the Illinois River is provided explaining the environmental impact of water pollution. Environmental...

Understand water as a limited resource, and how it becomes polluted.

Students learn about water management, treatment and purification- global issues that must be addressed to ensure a continued supply of safe water for the growing human population and for the organisms with which we share this planet.

The Science of Water Teacher's Guide provides a number of inquiry-based activities for grades 3-5 (although it can be expanded for other grades). The guide contains science lessons that enable students to explore water, behavior of...

Read the passage "Qualitative Analysis of Contaminated Water Supply," and complete the five-question quiz related to qualitative analysis.

Clean water is not a given everywhere in the world. In this science fair project, students will investigate whether sunlight could be used to disinfect contaminated water. The Science Buddies project ideas are set up consistently...

Use this website to find out about water quality issues anywhere in the U.S.A. where water studies have been conducted by the U.S. Geological Survey.

This U.S. Geological Survey website offers a short article then lists topics that are linked to brief articles that describe that particular topic's effect on water quality in urban areas. Click Home to access the site in Spanish.

Students are presented with examples of the types of problems that environmental engineers solve, specifically focusing on water quality issues. Topics include the importance of clean water, the scarcity of fresh water, tap water...

Many different kinds of organisms live in water. Excess nutrients can cause over-abundant growth of some organisms living in water and non-point source pollution is a major threat to water supplies in the United States. In this lesson...

[Free Registration/Login may be required to access all resource tools.] Describes the sources of water pollution.

Covers what is water pollution, how is it caused, the types of water pollution, its effects, and how you can conserve water and make it safe.