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    New York Hall of Science
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    In this activity, learners investigate how changing the center of gravity of a balloon affects how it travels. Learners fill a balloon with a little bit of water and insert into an empty balloon....

    1 cent - $1 per student Ages 8 - 14 Under 5 minutes
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    New York Hall of Science
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    In this activity, learners simulate the separation techniques that materials recovery facilities (MRFs) use and then design their own series of recycling techniques. Learners identify four ways...

    $1 - $5 per group Ages 11 - 14 1 to 2 hours
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    New York Hall of Science
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    In this activity, learners investigate diffusion by creating underwater "fireworks" using food coloring, oil and water. Learners create the appearance of fireworks by adding drops of red,...

    $1 - $5 per student Ages 6 - 11 5 to 10 minutes
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    New York Hall of Science
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    Build a catapult that transforms the potential energy of a twisted rubber band into kinetic energy. Experiment with design variations so that you can hit a target with a projectile.

    1 cent - $1 per student Ages 8 - 18 10 to 30 minutes