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    Miami Science Museum
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    In this activity, learners use marshmallows and gum drops to construct seven models of molecules. Learners classify (solid, liquid or gas) and draw diagrams of the molecules. Learners can also...

    1 cent - $1 per student Ages 8 - 18 10 to 30 minutes
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    University of Alaska Fairbanks
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    In this activity related to climate change, learners examine albedo and the ice albedo feedback effect as it relates to snow, ice, and the likely results of reduced snow and ice cover on global...

    1 cent - $1 per group Ages 14 - 18 45 to 60 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. <b>...

    1 cent - $1 per student Ages 8 - 18 10 to 30 minutes
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    WGBH
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    In this dynamic activity, learners build a catapult that launches projectiles, such as marshmallows. Participants then design and build their own models using the steps of the design process to...

    1 cent - $1 per group Ages 6 - 11 30 to 45 minutes
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    WGBH
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    In this design challenge activity, learners build a tower that can support a tennis ball at least 18 inches off the ground while withstanding the wind from a fan. Learners will build a sturdy frame...

    1 cent - $1 per student Ages 8 - 14 30 to 45 minutes
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    American Chemical Society
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    In this activity, learners make film canister rocket ships. A fin pattern is glued onto the outside of the canister, and fuel (water and half an antacid tablet) is mixed inside the canister. When...

    1 cent - $1 per student Ages 4 - 14 10 to 30 minutes
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    Museum of Science and Industry, Chicago
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    Learners act as engineers and design mini submarines that move in the water like real submarines. The submarines must be able to float, sink, and hover steadily without touching the top of the...

    1 cent - $1 per student Ages 8 - 14 10 to 30 minutes
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    NISE Network
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    In "Exploring the Solar System: Stomp Rockets," participants learn about how some rockets carry science tools—not scientists—into space, and how a special kind of rocket called "...

    1 cent - $1 per student Ages 6 - 14 5 to 10 minutes
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    New England Aquarium
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    In this activity, learners make a model of the hot water of a deep sea vent in the cold water of the ocean to learn about one of the ocean's most amazing and bizarre underwater habitats. This...

    1 cent - $1 per group Ages 8 - 14 5 to 10 minutes
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    University of Washington
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    In this activity (last activity on the page), learners make a model of the eardrum (also called the "tympanic membrane") and see how sound travels through the air. This activity page...

    1 cent - $1 per student Ages 6 - 18 5 to 10 minutes

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