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    In this activity, learners construct a simple air pressure launcher for paper rockets. Learners stomp or jump on an empty 2-liter bottle and force the air inside through connected plastic pipes to...

    $10 - $20 per group Ages 4 - 14 1 to 2 hours
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    The University of Texas McDonald Observatory
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    In this three part activity, learners explore and experiment with shadows to learn about the Sun's relative motion in the sky. Learners will trace, measure and compare their shadows over time,...

    1 cent - $1 per group Ages 4 - 11 1 to 2 hours

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