This interactive diagram allows the user to follow a drop of water from the source through the treatment process. Water may be treated differently in different communities depending on the quality of the water which enters the plant. Groundwater is water located under ground and typically requires less treatment than water from lakes, rivers, and streams. Users are invited to click on each treatment ... Full description.

This site provides information about rivers, coasts, and the processes affecting them. Students can view an animation of the water cycle, read about how rivers and coasts change, learn about estuaries, and view information on how rivers, coasts, and other water features influence people's lives. Glossaries and a teacher's page offering lesson plans, worksheets, and links to additional sites are also ... Full description.

Students will utilize the Internet to take a virtual field trip to visit a glacier and discover what physical effects glaciers have on the land. They will also have the opportunity to virtually visit Vermont and trace the pictorial history of how a whale's fossils were found there. The site also contains a student worksheet for their visual field trip. The site also provides an explanation of the ... Full description.

This very interactive site uses a variety of games to explore ocean related subjects. The games cover such topics as tidal zones, deep ocean species, ocean currents, general animal life of the ocean, symbiotic relationships, water pressure, human impact on ecosystems, and the habitats found at the South Pole and along the California coastline. There are help tabs added to the games called "Species ... Full description.

This interactive tour of the water cycle allows students to follow a water molecule from a home's plumbing system as it follows different routes through the hydrologic cycle. Students learn about how water is used, treated, and returned to the natural environment where it can cycle through liquid, solid, and gas phases. Full description.

As students tour this online gallery, they will see what familiar objects look like when viewed through an infrared camera. A scale is provided to the right of each image showing the temperature in Fahrenheit. Full description.

As students tour this online Infrared Zoo, they gather new information about the animals they would not get from a visible light picture. Infrared light shows us the heat radiated by the world around us. By viewing animals with a thermal infrared camera, we can actually see the differences between warm and cold-blooded animals. Infrared also allows us to study how well feathers, fur and blubber insulate ... Full description.

This Web site introduces the concepts of heat and temperature, heat transfer and detection. It also introduces several examples of what we can learn by detecting heat and measuring temperature. Full description.

This online Flash game is hosted on the James Webb Space Telescope Web site. Because the Webb Telescope is unusual in appearance, it doesn't look like a telescope - but it actually does have a lot in common with simple tube-shaped telescopes. "Scope It Out!" includes an introduction to reflecting and refracting telescopes and four levels of matching games, where you compare a simple reflecting telescope ... Full description.

In this interactive web game, participants learn about the different types of galaxies (spiral, elliptical and irregular) by viewing them in different wavelength bands (infrared, visible, x-ray). They then learn about active galaxies vs. quiescent galaxies by examining visible light spectra together with the multi-wavelength images. The final challenge is to observe a model of our own galaxy to determine ... Full description.