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    The Exploratorium
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    In this activity, learners use heat to separate zinc and copper in a penny. This experiment demonstrates physical properties and how physical change (phase change) can be used to separate matter.

    1 cent - $1 per student Ages 11 - 18 5 to 10 minutes
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    In this activity, learners build a recording timer made from simple materials (e.g., small dc motor, sharpie pen, craft sticks, adding machine paper tape, etc.). The device produces a record of...

    Over $20 per group Ages 14 - 18 1 to 2 hours
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    The Exploratorium
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    If you have access to a copper metal tube, this activity does a great job demonstrating what happens to matter when it's heated or cooled. This activity requires some lab equipment.

    $1 - $5 per student Ages 8 - adult 10 to 30 minutes
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    In this activity, learners construct their own small catapults using simple materials. Learners follow visual instructions to build their launching device. This activity can be used as a lesson on...

    $10 - $20 per student Ages 8 - 18 1 to 2 hours
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    In this activity, learners burn a peanut, which produces a flame that can be used to boil away water and count the calories contained in the peanut. Learners use a formula to calculate the calories...

    $5 - $10 per group Ages 11 - 18 10 to 30 minutes
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    Do you have an extra portable cassette tape player hanging around? This science activity demonstrates magnetic field coupling so that you can hear your iPhone music through the cassette player...

    1 cent - $1 per student Ages 8 - 18 5 to 10 minutes
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    In this activity, learners make a simple spring-like scale using a rubber band instead of a spring, and calibrate the scale in newtons (N). Learners will gain an understanding of and familiarity...

    $1 - $5 per student Ages 11 - 18 30 to 45 minutes
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    It's difficult to see convection currents in any liquid that's undergoing a temperature change, but in this Exploratorium Science Snack, you can see the currents with the help of food...

    1 cent - $1 per student Ages 8 - 18 10 to 30 minutes
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    Balance a ball in the air with a hair dryer! This Exploratorium produced activity shows learners concepts like lift and air streams. You can try many different angles, speeds, and ball types.

    1 cent - $1 per student Ages 4 - 18 Under 5 minutes
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    By making models of light waves with paper, learners can understand why different colors appear in bubbles. Since light has different sizes, you'll see why certain iridescent colors appear in...

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

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