An informative site that examines the multiple causes of soil erosion and possible remedies.

What is economic growth? This site not only gives a definition, but also provides a great overview of various characteristics of how economies can grow. Discusses different types of resources, possible negative effects of growth, and...

Interactive game lets players consider the downside of our dependence on oil by having them step into the role of a purposefully bad oil industry executive driven to extremes by insatiable demands for more oil and more profits. Everyone...

This report from the U.S. Geological Survey uses illustrations to show how water moves through an aquifier and also how water is obtained from the ground.

Learn how to enhance economic development and growth. Learn the role of the United States Geographic Survey on locating, quantifying and qualifying non-renewable resources.

Find out about how groundwater is disappearing across Asia, and how NASA satellites are helping scientists work on fixing the problem.

Explore more about acid rain. This is an online experiment to observe "The influence of acid rain on plant growth." Find out how acid rain can damage your plants directly and indirectly.

Discover what ozone molecules are made of and the important role ozone plays in the safety of humans. In this article, learn about scientists rating ozone levels and the harm linked with "bad" ozone levels.

Wikipedia provides a definition of crop rotation, including a brief history and examples.

A history of crop rotation in the United States. Once an incentive from the New Deal, farmers were paid to plant certain crops or let the soil lie fallow.

A short ebook (with some embedded ads) that explains how diodes work, some different types, and some applications of diodes.

This investigation has students investigating and measuring the decay of batteries as their electric charges are used up in circuits.

This site from USGS describes the importance of ground-water, provides a map of ground-water use (by state), a map of the percent of total withdrawals coming from ground water, and a map of the percent of public-supplied population...

This site from the U.S. Environmental Protection Agency provides general information about ozone damage.

Students explore the causes and effects of the Earth's ozone holes through discussion and an interactive simulation. In an associated literacy activity, students learn how to tell a story in order to make a complex topic (such as global...

[Free Registration/Login may be required to access all resource tools.] Describes how air pollution affects human health.

[Free Registration/Login may be required to access all resource tools.] How air pollution affects human health.

[Free Registration/Login may be required to access all resource tools.] Describes the gases that the atmosphere is made out of.

A large collection of web resources on the topics of global warming and climate change. Some links may be broken, as the site is no longer actively maintained.

A detailed overview of the ground-level ozone, tropospheric ozone, with explanations about how it is called the bad ozone and how it varies day to day. All information is reinforced through pictures, graphs, and learning activities....

The North Carolina Department of Environmental Quality offers the PDF "The Adventures of Clair & Cam" a K-5 Curriculum & Activity Guide which provides air quality education videos, lessons, activities, and music. Requires Adobe...

This comprehensive site on air pollutions, sponsored by the Center for Improved Engineering and Science Education at Stevens Institute of Technology, includes worksheets, knowledge-assesment tools, and detailed instructions.

[Free Registration/Login may be required to access all resource tools.] Discusses the causes and effects of air pollution.

[Free Registration/Login may be required to access all resource tools.] How banning CFCs helped protect the ozone layer.