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    The Exploratorium
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    Learn about chemical reactions by making a Bubble Bomb, a plastic bag you can pop with the power of fizz. The bubbles in the Bubble Bomb are filled with carbon dioxide, a gas that forms when...

    1 cent - $1 per student Ages 4 - 11 10 to 30 minutes
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    The Exploratorium
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    With little more than a flashlight, a straw, and a plastic lid, make an observatory so you can see the amazing colors in bubbles. Learn about how light travels in waves and how the frequency of a...

    $1 - $5 per student Ages 4 - 11 5 to 10 minutes
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    Lawrence Hall of Science
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    What keeps bubbles and other things, like airplanes, floating or flying in the air? In this activity, learners blow bubbles and wave 3x5 cards above, below and on different sides of the bubbles to...

    1 cent - $1 per student Ages 4 - 14 10 to 30 minutes
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    Iridescent
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    In this engineering design challenge, learners make a bubble maze that allows bubbles to move through a series of “on” and “off” switches. As learners work their way through the design process,...

    $5 - $10 per group Ages 4 - 18 1 to 2 hours
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    Twin Cities Public Television
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    In this activity (page 1 of the PDF), learners will whip up some suds with a cup of water and a tablespoon of dish soap until the bubbles are stiff enough to start piling on a plate. The challenge...

    1 cent - $1 per group Ages 8 - 14 30 to 45 minutes
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    Institute of Physics
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    In this demonstration, learners observe the effects of density and pressure. A "diver" constructed out of a piece of straw and Blu-Tack will bob inside a bottle filled with water. This...

    1 cent - $1 per group Ages 4 - adult Under 5 minutes
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    Lawrence Hall of Science
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    In this activity, learners explore the property of surface tension by carefully dripping water onto a penny and counting how many drops fit before the water spills over the edge of the penny. Then...

    1 cent - $1 per group Ages 6 - 14 30 to 45 minutes
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    Twin Cities Public Television
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    In this quick activity (page 1 of the PDF), learners will build a simple Cartesian Diver in an empty 2-liter bottle. Use this activity to demonstrate the principle of buoyancy, similar to the...

    1 cent - $1 per group Ages 8 - 14 10 to 30 minutes