This resource ties together physical and biological aspects of ocean color for high school students. Specific sections discuss life in the oceans, the appearance of the ocean from space, phytoplankton (the little link in a big food chain), carbon (where does it go?), and the Earth as a giant greenhouse. There are also activities that accompany these lessons. Full description.

Users can obtain current weather forecasts for their own areas by entering a ZIP code, or they can access a large archive of historic data on severe weather (tornadoes, hail, high winds, hurricanes). Materials presented in the archive include dates, times, and intensities of storms, a photo gallery, maps, radar and other satellite data, storm chaser reports, and links to other weather sites. Raw data ... Full description.

Users can read and view pictures as part of a discussion of the positive and negative impacts of dam building on the streams, rivers, and watersheds in the United States and in Egypt. Conservation measures intended to increase the availability of water for fish and wildlife are outlined, and a link to the Dam and Reservoir Impact and Information Archive is provided. This archive is an extensive collection ... Full description.

This program provides an overview of the issues surrounding the construction of the Three Gorges Dam across the Yangtze River in China. When it is completed, this dam will produce the energy of 15 nuclear power plants and tame some of the river's deadliest floods. However, it is also the subject of much controversy. Topics include the loss of important archaeological, cultural, and paleontological ... Full description.

This is a lesson that enables the student to describe how hurricanes move and change appearance over time through the use of the pubic domain image processing software. Full description.

This site uses data from ocean drifting buoys to integrate ocean science into classroom science and math instruction. Opportunities exist to enhance lessons with suggested educational activities and curriculum materials developed and tested by teachers. Teachers can also use only the data, background information and reference images to supplement existing curricula. Data is collected by the National ... Full description.

In this activity, students download NASA Hubble Space Telescope (HST) images of the Martian polar ice caps in summer and winter. Using image processing techniques, students measure and compare various images of the changing Martian and Earth polar ice caps. By completing this activity, they will understand that the sizes of the polar ice caps on Earth and Mars depend on the lengths of the seasons. ... 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.