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    Oregon Museum of Science and Industry
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    Learners experiment with a commercially available liquid-crystal coaster. They warm the material with their hands for varying lengths of time and observe the changing colors that result. As the...

    $5 - $10 per group Ages 4 - 14 5 to 10 minutes
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    Community Science Workshop Network
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    In this activity, learners construct a simple game to test their hand-eye coordination and steadiness of hand. Learners draw face in a small piece of wood, drill indentations in the eyes and nose,...

    1 cent - $1 per student Ages 6 - 14 30 to 45 minutes
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    Oregon Museum of Science and Industry
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    This activity (on page 2 of the PDF) features a recipe to create the stretchy polymer Flubber from Borax detergent, white glue, and water. This fun and easy activity provides opportunities to...

    $1 - $5 per student Ages 4 - 14 10 to 30 minutes
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    Oregon Museum of Science and Industry
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    Learners use a commercially available toy to experiment with density. They fill a chamber in the toy submarine with baking powder and release it into a tank of water. The material making up the...

    $1 - $5 per group Ages 4 - 14 5 to 10 minutes
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    Colorado State University
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    In this exploratory activity, learners experiment, observe and determine how various toys change from one form of energy to another. Learners play with a pull-back race car, a groan tube, a popper,...

    $5 - $10 per group Ages 8 - 14 45 to 60 minutes
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    Oregon Museum of Science and Industry
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    Learners experiment with a piece of Silly Putty® by stretching, bouncing, and snapping it. They then create flubber, a similar substance, by mixing diluted glue and a solution of sodium borate....

    $1 - $5 per group Ages 6 - adult Under 5 minutes
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    Twin Cities Public Television
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    In this engineering activity, learners design their own board games. Learners brainstorm the various components of board games, conduct research using well-known games, and then design and...

    $1 - $5 per group Ages 8 - 14 2 to 4 hours