This applet presents a visualization of the albedo of the earth. It is one of a series for a textbook. Users can adjust the speed of the visualization. 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.

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 uses Virtual Reality field trips in the Alvin submarine to the East Pacific Rise to explore hydrothermal vents. The education activites focus on 4 activities: Exploration, Observing (actual video from the seafloor), Mapping, and Collecting a Water Sample. Teaching materials for each of the explorations have been provided, each with two levels of assessment (basic and advanced). Full description.

Until recently, the total energy imparted to the oceans from the moon's gravitational pull has not been fully accounted for: about 30 percent had seemingly vanished without mathematical explanation. The total energy dissipating along the world's shallow areas and coasts don't add up to the expected total. However, data collected by the U.S./French satellite called TOPEX/Poseidon may provide the answer. ... Full description.

Sound Health 2001 highlights water quality conditions, the status of living organisms, trends in land use and development, and other indicators of environmental health for Long Island Sound. Materials presented here address the following questions: Are the waters and sediments getting cleaner?, Are fish and wildlife populations more abundant?, Are fish and wildlife habitats being protected and restored?, ... Full description.

This article discusses the necessity of locating water ice as astronauts explore the solar system, for oxygen and fuel as well as for drinking. Topics include the possible occurrence of ice at the lunar poles and in comets, and some of the National Aeronautics and Space Administration (NASA) missions to locate it. Full description.

The site focuses on the responses of Antarctica and its sea ice to climate changes. Two experiments help illustrate what happens as water warms and how this warming could affect sea levels and low-lying coastal areas. Links to more detailed information are also provided. Full description.

This is a very extensive site, providing backround information about virtually all aspects of weather. Topics include: the role of the sun; wind; storms and fronts; forms of water; flood and droughts; snow and ice; lightning, thunderstorms and tornadoes; hurricanes; the sky; weather prediction; climate change; weather extremes; and a bibliography of other resources. Within each topic are several brief ... Full description.

This is the site of a not for profit educational initiative. The site strives to promote competency in literacy and mathematics using lessons that focus on an aquaculture themes. These lessons include Understanding Percents (through the management of classroom fish), Equivalent Fractions (use food-coloring, sugar, and a dissolved oxygen tests to determine concentrations), and Japanese Garden (where ... Full description.