The Water Sourcebooks from the U.S. Environmental Protection Agency contain 324 activities for grades K-12 divided into four sections: K-2, 3-5, 5-8, and 9-12. Each section is divided into five chapters: Introduction to Water, Drinking Water and Wastewater Treatment, Surface Water Resources, Ground Water Resources, and Wetlands and Coastal Waters. This environmental education program explains the ... Full description.

The Gulf of Maine Aquarium hosts this two-part activity. The focus is on seasonal changes in the mass balance of the Antarctic Ice Sheet. Part 1 uses an atlas and satellite imagery to examine the geography of the region and the changing boundaries of the ice sheet. Part 2 tracks annual changes in sea ice. There is an animation page showing changes in ice cover around Antarctica during 1991, and links ... Full description.

Supplemental to The World's Water book by Peter Gleick, this site offers data on the world's freshwater resources and uses. Tables and maps provide information on quantity and quality issues including data on access to safe drinking water; waterborne disease outbreaks; desalination capacity; as well as hydroelectric capacity and production. There is also a unique chronology documenting the historical ... Full description.

Visitors can access information on a variety of water issues in Arizona, including the Colorado River, riparian areas, water conservation, water rights, and recreation. The Arizona Water Resources Research Center (WRRC) provides a glossary of water terms, a stream gauge map and a directory of water-related agencies and organizations, especially Arizona Project WET (Water Education for Teachers). Other ... Full description.

This site offers several ways to explore the importance of estuaries. Virtual tours of the Barataria-Terrebone Estuarine Complex and the Long Island Sound offer photos and text of each area explain their importance to humans, wildlife, and larger ecosystems. Additional resources for kids and adults are linked. A glossary page offers a list of vocabulary associated with estuaries. The site also offers ... Full description.

Contains information on REEF, an organization devoted to preserving marine life through education, research and involvement. It includes a fish gallery with images and information on a variety of tropical fish. Membership provides reduced-cost dive trips all over the world to conduct observational research while diving. New data is added daily from volunteers world-wide and is available for download ... Full description.

This USGS site contains graphs, tables, and charts for the following ground water topics: What is ground water, ground water flow diagrams, importance of groundwater, and trends in ground-water use. Ground water quality, pesticides, aquifers, waterwells, artesian wells, sinkholes, and land subsidence are also covered. There are a variety of links within all of the above topics and a very complete ... Full description.

This activity walks users through a technique for documenting change in before-and-after sets of satellite images. The technique can be used for any set of time-series images that are spatially registered to show the exact same area at the same scale. In the chapter, users examine three Landsat images of the Pearl River delta in southeastern China. In the images, users observe changes in land use ... Full description.

This book cover relates the role the Great Dismal Swamp, NC, plays in the food chain. Full description.

K-12 students from all over the world are participating in the GLOBE program by taking environmental measurements at their schools and sharing their data via the Internet. NASA scientists use GLOBE data in their research and provide feedback to the students. The Soil Chapter of the GLOBE 2003 Teacher's Guide presents information on how to characterize soil profiles and measure soil moisture and temperature. ... Full description.