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I. Interdependence of Earth's Systems
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Fundamental Principles and Concepts
Paleomap Project
This is a very useful site for displaying the movement of continents over geologic time. It includes a section that projects what Earth has looked like from the Pre-Cambrian period to the present and even what it will look like in 250 million years. Of particular use for teachers are the animations. These show the movements of the late Pre-Cambrian period, the formation and breakup of Pangaea, the movement of India across the Indian Ocean into the bottom of Asia, the formation of the Caribbean Sea, and more. (Each one takes one to two minutes to download on a 56k modem.) There is also a Paleo-Globe that you can download, print to a full sheet of Avery labels, and paste onto four-inch Styrofoam balls to make a realistic globe of the Late-Permian period.
 Paleomap Project
Cycles of Materials
This page demonstrates the carbon, nitrogen, and phosphorous cycles and is useful for a quick review. The student is asked to identify the processes and then to add steps such as sedimentary, fossil fuel cycles, and volcanic activity. It also discusses the role of energy.
Cycles of Materials
Suggested Web Sites
The Teachers' Corner contains links to suggested Web sites. The College Board neither endorses, controls the content of, nor reviews the external Web sites included here. Please note that following links to external Web sites will open a new browser window. If you discover a link that does not work, please let us know by sending an e-mail to apctechsupport@collegeboard.org.
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