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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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    In this weather activity (page 10 of the PDF), learners will demonstrate the changes in atmospheric pressure by constructing their own barometer. Learners will explore the concept of barometric...

    $1 - $5 per student Ages 11 - 18 1 to 7 days
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    In this chemistry activity (page 5 of the PDF), learners will use milk and a few other basic ingredients to create a chemical change to make a color wheel. Although this is a previsit activity for...

    $10 - $20 per group Ages 8 - 14 10 to 30 minutes
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    In this geology activity (page 3 of the PDF), learners simulate an earthquake with little more than an elastic band and drinking straws. Learners see firsthand how an earthquake gets its...

    $1 - $5 per student Ages 14 - 18 10 to 30 minutes
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    In this physics activity, learners attempt to lift a jar full of rice using only a spoon. In so doing, they explore the effects of density, gravity and resisting forces on any given object, and...

    $5 - $10 per group Ages 8 - 11 10 to 30 minutes
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    In this biology activity (page 8 of the PDF), learners will explore how saliva assists in the beginning of the digestive process. By comparing chewed and unchewed crackers, they will see first hand...

    $1 - $5 per student Ages 8 - 14 10 to 30 minutes
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    In this fun chemistry activity (page 3 of the pdf), learners use cabbage juice to determine the pH of several substances. Designed as a pre- or post-visit lesson in connection to a trip to COSI...

    $1 - $5 per group Ages 8 - 11 30 to 45 minutes
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    In this activity, learners explore why frost forms. They create their own frost using a solution of ice water and salt in a glass. The salt allows the temperature of the water to drop below the...

    1 cent - $1 per student Ages 8 - 14 10 to 30 minutes
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    In this chemistry experiment, learners get to make a very bizarre substance using corn starch and water. Is it a solid? Is it a liquid? Or is it a different kind of substance entirely? Sometimes...

    $1 - $5 per group Ages 4 - 11 10 to 30 minutes
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    In this mathematics activity (page 4 of the PDF), learners will explore the relationship between the diameter and circumference of an object. They will see that no matter what the object, these...

    $1 - $5 per student Ages 11 - 18 10 to 30 minutes

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