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    COSI
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    In this physics activity (page 12 of the PDF), learners explore potential and kinetic energy by rolling different sized marbles down an inclined plane. Learners compare the amount of work done by...

    $1 - $5 per group Ages 4 - 14 10 to 30 minutes
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    Lunar and Planetary Institute
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    In this activity, learners measure the diameter of their water balloons, model an impact, measure the diameter of the “crater” area, and determine the ratio of impactor to crater. This activity is...

    $1 - $5 per group Ages 8 - 14 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 investigate weight by building a spring scale. They observe and record how it responds to objects with different masses. This activity can be combined with other activities to create a...

    $1 - $5 per group Ages 11 - 14 45 to 60 minutes
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    COSI
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    Everybody loves boomerangs! In this activity about force and motion, the learners will experiment with boomerangs and explore how they work. This is a great activity to get learners up and moving.

    $1 - $5 per student Ages 4 - 8 10 to 30 minutes
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    Kohl Children's Museum
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    In this activity, learners follow a recipe to create play dough scented with fruit-flavored drink mix. As they mix together the ingredients, learners are encouraged to use descriptive words to...

    $1 - $5 per group Ages 4 - 8 30 to 45 minutes
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    Lawrence Hall of Science
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    Learners discover the bubble power of living cells in this multi-hour experiment with baker's yeast. Learners make a living yeast/water solution in a bottle, and add table sugar to feed the...

    $1 - $5 per group Ages 6 - 14 4 to 24 hours
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    American Chemical Society
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    In this activity learners compare the bounciness of warm and cold racquetballs to see if temperature makes a difference in how well they bounce. Use this activity to introduce polymers and...

    $1 - $5 per student Ages 8 - 14 10 to 30 minutes
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    American Physical Society
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    Learners build a pendulum from a yo-yo, and then design their own experiment to determine what affects the pendulum's period of swing. They can alter the mass of the yo-yo by adding play dough...

    $1 - $5 per group Ages 11 - 14 45 to 60 minutes
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    COSI
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    In this activity about friction and gravity (page seven of the pdf), learners use toy racing cars to explore how the two forces affect the motion of objects. This is an excellent activity to...

    $1 - $5 per group Ages 4 - 8 10 to 30 minutes
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    Mount Holyoke College
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    In this two-part activity about luminescence, learners explore the chemistry that happens inside glow sticks and other light producing reactions. First, learners build a ground state model and a...

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

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