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Learn About Geologic Time	Fossil Records
All About the Planets	The Electronic Zoo - Links to any animal or animal related topic.
Web Elements. Information about the periodic table.	Thrills and Chills without the Spills - Rollercoaster Physics. Create a dream ride and test it in a virtual amusement park. Compete on-line.
Earth and Moon Viewer. View the arth or moon by day or night, from any angle.