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This site offers information on many aspects of water, including text, pictures, data, maps, and an interactive center where users can offer opinions and test their water knowledge. Main topics include: water basics, Earth's water, water use, and special topics such as acid rain, saline water and other water-quality issues. Links to other water-related sites are also provided.
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National Science Education Standards (NSES): Read
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Users can view a selection of animations of ocean surface temperature and dynamic height derived from data from the TAO/
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This movie shows Venus and Earth as they rotate. The images are superimposed on each other so that differences in rotation speed and tilt of axes can be seen. Links to documents describing the physical properties and characteristics of the two planets are provided.
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This animation depicts the formation of the solar system from a solar nebula, a great swirling cloud of gas and dust. It is accompanied by a link to a written description explaining the solar system's formation in greater detail.
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This animation showing Neptune as it rotates was imaged by the spacecraft Voyager. A link is provided to a written document that describes the physical characteristics and appearance of the planet.
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This animation shows a sequence of daily images of the southern hemisphere in which daily and seasonal fluctuations in the ozone hole over Antarctica can bee seen. The images were captured by the Total Ozone Mapping Spectrometer (TOMS), an instrument carried aboard the Earth Probe spacecraft.
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This simulator allows the user to manipulate seasons on Earth or the other planets. The target planet, viewpoint, date and time, field of view, and other options may be chosen.
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This animation illustrates how tsunamis can be caused by underwater earthquakes, which are frequently located at subduction zones where oceanic plates are slipping under continental plates.
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This simulated image of the Van Allen Belts is part of the Great Images in NASA (GRIN) library, a collection of JPEG images which is browseable by subject, NASA center (Goddard, Jet Propulsion Laboratory, etc.), or by keyword. Links to other parts of the GRIN website are included.
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This educational brief provides an overview of the layers of the atmosphere, the effects of the solar wind upon them, and how these effects are mitigated by Earth's magnetic field. It also describes OMNIWeb, an internet-based data retrieval interface for obtaining datasets on solar energetic particles.
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