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    New York Hall of Science
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    This activity lets you program your 'robot' (a willing friend) to pick up and dispose of some 'toxic waste' using as few commands as possible. Learners create command cards ...

    1 cent - $1 per group Ages 8 - 18 10 to 30 minutes
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    Aquarium of the Bay
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    In this multi-step experiment (page 4 of pdf), learners study tide pools, and then drop a "wave" (a 4-pound bag of beans or birdseed) on a shell to mimic the force of crashing surf on...

    1 cent - $1 per student Ages 8 - 11 45 to 60 minutes
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    WGBH
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    In this activity, learners construct paper airplanes that twist and turn. Learners can experiment with different designs and modifications to the gliders' flaps to adjust the aerodynamics and...

    1 cent - $1 per student Ages 6 - 11 5 to 10 minutes
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    Science Museum of Minnesota
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    Learners will construct a model of a heart valve using a film canister, a piece of masking tape, and a piece of paper. They investigate their "valve" by altering it to see what happens...

    1 cent - $1 per group Ages 4 - adult 10 to 30 minutes
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    Optical Society of America
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    In this optics activity, learners make a lens and explore how the eye manipulates the light that enters it. Learners use a shoebox, a glass of water, and colored plastic to make essentially a model...

    1 cent - $1 per student Ages 8 - 14 5 to 10 minutes
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    Twin Cities Public Television
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    In this quick activity (page 1 of the PDF), learners will test how many pennies a flat paper index card bridging the gap between two stacks of books is able to support. Then, learners alter the...

    1 cent - $1 per group Ages 8 - 14 10 to 30 minutes
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    WGBH
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    In this activity, learners build a simple tabletop seesaw to test how different variables (the position of the fulcrum, distance, weight) affect its balance under increasing weight loads. Extension...

    1 cent - $1 per student Ages 6 - 11 10 to 30 minutes
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    Integrated Teaching and Learning Program, College of Engineering, University of Colorado at Boulder
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    Learners make a skydiver and parachute contraption and launch it. They see that the drag created by air resistance slows the descent of skydivers as they travel back to Earth. This activity can be...

    1 cent - $1 per group Ages 11 - 18 30 to 45 minutes
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    BioEd
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    This activity helps learners visualize the Human Immunodeficiency Virus (HIV) by constructing three-dimensional HIV particle models from paper. The model to be used is a 20-sided polyhedron ...

    1 cent - $1 per student Ages 8 - 18 1 to 2 hours
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    PBS
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    In this math lesson, learners design an experiment to model a leaky faucet and determine the amount of water wasted due to the leak. Using the data they gather in a table, learners graph and write...

    1 cent - $1 per group Ages 11 - 14 45 to 60 minutes

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