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    Twin Cities Public Television
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    This is an online Flash game where learners can experiment with ballistics and how to compensate for the varying levels of gravity found on the planets of our Solar System. Their mission: set the...

    free Ages 6 - 14 5 to 10 minutes
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    Twin Cities Public Television
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    This activity (on page 2 of the PDF) is a full inquiry investigation into absorption and reflection of radiant energy. In order to build a house that keeps a dog as cool possible in the heat,...

    $10 - $20 per group Ages 8 - 14 2 to 4 hours
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    Twin Cities Public Television
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    In this physical sciences activity, learners explore how passive solar design increases energy efficiency. Learners test paperboard models of different building designs to discover how the design...

    $1 - $5 per group Ages 8 - 14 1 to 2 hours