The Changing Marine Environment
This Dynamic Earth: The story of plate tectonics” from the U.S. Geological Service is a summary of this unifying principle of geology.
Visit the This Dynamic Earth web site
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The Changing Marine Environment
“Global Positioning” from NOAA's National Ocean Service summarizes the Global Positioning System (GPS), an important advance in technology.
Visit the Global Positioning web site
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The Changing Marine Environment
“Global Topographic Map,” courtesy of the Marine Geology and Geophysics Division of the National Geophysical Data Center (operated by the United States Department of Commerce, NOAA) presents topographic maps of the Earth and its ocean basins, along with an instant view of day:night cycles everywhere on Earth.
Visit the Global Topographic Map web site
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Properties of Sea Water
All you ever wanted to know about water.
Visit the Water’s Structure and Behavior web site
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Properties of Sea Water
A detailed composition of seawater table at the web site of the conservation group Seafriends.
Visit the Composition of Seawater web site
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The Ocean in Motion
Visit “Ocean Currents and Climate” to learn more about any type of water movement anywhere in the world ocean. Explore further to learn the effects of ocean currents on weather all over the globe.
Visit the Ocean Currents and Climate web site
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The Ocean in Motion
A Tide and Current Prediction web site (important for anyone who uses the sea for business, science, or recreation.
Visit the Tide and Current Predictor web site
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The Ocean in Motion
Another Tide and Current Prediction web site from NOAA.
Visit the Tides Online web site
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The Ocean in Motion
NOAA presents this online tutorial to increase your understanding of tides and water levels.
Visit the Tides and Water Levels web site
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The Ocean in Motion
Another online tutorial, this one focuses on a brief explanation of the basic astronomical factors that produce tides and tidal currents.
Visit the Our Restless Tides web site
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