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    In this activity, learners discover that one way to cool an object in the presence of a heat source is to increase the distance from it or change the angle at which it is faced. Learners perform an...

    1 cent - $1 per group Ages 8 - 14 1 to 2 hours
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    In this activity, learners build a sled kite that models a type of airfoil called a parawing. Learners keep a journal on the behavior of the kite and test different variables (tail, tail length,...

    $1 - $5 per student Ages 6 - 11 1 to 2 hours
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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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    This activity (on pages 10-12 of the PDF) encourages learners to consider what makes living things different from non-living things. Learners discuss a pre-selected pair of objects, one living and...

    $1 - $5 per group Ages 4 - 14 1 to 2 hours
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    In this activity, learners construct hand-held altitude trackers. The device is a sighting tube with a marked water level that permits measurement of the inclination of the tube. Learners can use...

    $5 - $10 per group Ages 8 - 18 1 to 2 hours

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