• All About Sea Ice
  Processes: Thermodynamics: Albedo. From National Snow & Ice Data Center
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• BBC - Science & Nature - Sea Life - Games
  Ocean-related Flash games to play in Oceanography or middle school science
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• Earth Day
  PBS Teachers Activity Packs Science and Technology Earth Day Every day is Earth Day if we take care of our blue planet and make wise decisions about legislation, recycling, and solve local environmental problems.
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• Explore the planet Mars with realistic Mars habitats, rockets, ground cars and robots
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• Learner Response Systems Forum on Promethean Planet
  Learner Response Systems - Products - Promethean Planet
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• Maya Astronomy
  The  Maya are well known for their precise calendar and astronomy. The four surviving written documents (which are called the Dresden, Madrid, Paris, and Grolier Codices) that they have left behind include an ephemeris that charts the heliacal risings and settings in the synodic cycle of the planet Venus and an eclipse warning table based on observable lunar and solar cycles.
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