This activity of the Earth Exploration Toolbook 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, ... Full description.

Surf Your Watershed is the Environmental Protection Agency's effort to provide a comprehensive center for geographically relevant information about drinking water regulations, drinking water publications, public water systems, ground water, and water quality and pollution issues. Resources include how to locate your watershed anywhere in the United States, state and tribal information, an index of ... Full description.

By matching maps of snow and ice amounts with maps of net radiation flux for the same time frame, students will use the Live Access Server to explore how the net radiation flux has affected the snow and ice amounts in the Northern Hemisphere, as well as how the presence of snow can affect the net radiation flux due to surface reflection. Detailed Procedure and Materials, Vocabulary linked to an On-line ... Full description.

This lesson uses NASA satellite data to contrast amounts of cloud coverage over different climate regions in Africa. An an outcome of the lesson, the student will be able to explain how Earth's major air circulations affect global weather patterns and relate local weather patterns to climate as well as identify different climate regions. Students will also describe conditions for cloud formation along ... Full description.

This resource offers several avenues for students to evaluate environmental effects on water quality. The Bear Creek case study asks students to imagine they are owners of an environmental consulting firm who has been hired by a local catch-and-release campsite to find out why all the fish are dying, and come up with solutions to fix the problem. Biological, chemical and physical data for locations ... Full description.

Materials presented here outline basic concepts related to groundwater, answering questions like "What is groundwater?" and "What is an aquifer?" More detailed topics include groundwater quality, sources of contamination, engineering problems presented by groundwater, and safeguards to the groundwater supply. A bibliography and links to other water-related sites are included. A French translation ... Full description.

In this activity, younger students investigate the effects of acid rain. They will view photos of buildings and statues that have been damaged by acid rain, and conduct an experiment in which they treat a chalk 'statue' with vinegar and observe the effects. Full description.

Students investigate the challenges of living and working in Antarctica and the technologies that help researchers meet those challenges. This six-day unit includes: teacher tools (downloadable readings, breakdowns of tasks, teacher strategies, grading sheet and rubric), an online activity (students review the preparation materials given to researchers traveling to Antarctica), classroom activities ... Full description.

Give Water A Hand is a national watershed education program designed to involve young people in local environmental service projects. Following the steps in the Give Water A Hand Action Guide, your youth group or class plans and completes a community service project to protect and improve water resources. The free action guide is available for download here. Give Water A Hand program activities are ... Full description.

This lesson plan introduces students to river ecology and addresses the societal and environmental impacts associated with dams and their construction. By understanding dams and their effects on the environment, students will propose the construction or abolition of a dam in their hometown or other geographic area. They will think objectively and critically about real issues affecting the future of ... Full description.