The PALEOMAP Project illustrates the plate tectonic development of the ocean basins and continents, as well as the changing distribution of land and sea during the past 1100 million years. The reconstruction of paleoclimates is also discussed. Maps are viewed as animations where the time component can be user-manipulated. Included are a variety of background materials which supplement the animations. ... Full description.

This set of resources for younger students includes activities and information on thunderstorms, tornadoes, hurricanes, blizzards and clouds: how they form, and how they impact our lives. There are games about clouds, stories about extreme weather events, and a set of activities in which students create simulations of various weather phenomena such as fog, clouds, tornadoes, and others. The 'Recipe ... Full description.

This NASA site contains a wealth of information about hurricanes, including how they are created, how they move, and the dangers they pose. Also included are sections that deal with naming of hurricanes, hurricane hunters, a VR trip through a hurricane, satellite instrumentation, and a video of hurricane Andrew. Full description.

This is a Flash-based interactive tool kit. It allows users to watch real-time NASA satellite images of the Sun and Earth. A thumbnail viewer lets them explore and compare solar and terrestrial data from a variety of NASA missions and ground-based observatories. In addition, the viewer contains video interviews with scientists and other experts. Computer-generated visualizations and additional NASA ... Full description.

This activity introduces students to planetary research. Students learn to focus on details by studying and writing descriptions of uncaptioned images of the Solar System. They then increase their knowledge of the planets and their features by comparing their descriptions to those of real researchers. Students organize their findings to infer a key difference between inner and outer planets. Full description.

This collection of imagery and visualizations is derived from the geosynchronous and polar orbiting environmental weather satellites administered by the National Oceanic and Atmospheric Administration's (NOAA) National Environmental Satellite Data and Information Service. Other sources include the European Organization for the Exploitation of Meteorological Satellites (EUMETSAT) and The National Space ... Full description.

This site features a series of Flash-based animations on several aspects of the San Antonio Water System. Although regional in focus, the topics are broadly applicable. They include: the hydrologic cycle, aquifer structure and function; non-point-source pollution, fresh water distribution, waste water treatment, aquifer storage and recovery and household water conservation. There are also links to ... Full description.

Students in this lesson will be introduced to the concept of tides and tidal forces. By viewing a related applet which visualizes the relationship between the Earth, moon and tides, students will gain an understanding of why the Earth experiences tides. In the process they are asked to observe and explain how the relative positions of Earth, the moon, and the sun are responsible for the moon phases, ... Full description.

Visitors to this site can read and view satellite imagery about the most recent La Nina event, which produced less-than-normal snowfalls in Western North America. A TOPEX/Poseidon image of the Pacific ocean illustrates the warmer water and higher-than-normal sea surface height in the Western Pacific which are characteristic of a La Nina event. A discussion of the uncertainties of long-range climate ... Full description.

This booklet introduces electromagnetic waves, their behaviors, and how scientists visualize these data. Each region of the spectrum is described and illustrated with examples of NASA science. It is a companion piece to the video series under the same title. Full description.