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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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    In this optics activity, learners discover how they can make glass objects "disappear." Learners submerge glass objects like stirring rods into a beaker of Wesson™ oil to explore how the...

    1 cent - $1 per group Ages 6 - 14 10 to 30 minutes
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    In this activity related to light and perception, learners use a pinhole in an index card as a magnifying glass to help their eye focus on a nearby object. Learners will also discover that because...

    1 cent - $1 per student Ages 6 - 14 10 to 30 minutes
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    This activity about density provides instructions for making a miniature "lava lite" with just salt, oil, water, and food coloring. This crowd-pleasing experiment is a hands-on and...

    1 cent - $1 per student Ages 4 - 8 10 to 30 minutes
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    Make a cuíca (“kwee-ka”), a traditional Brazilian musical instrument that originated in Africa. Played primarily in Brazil, now you can play it at home, too, with this Exploratorium produced activity.

    1 cent - $1 per student Ages 6 - adult 10 to 30 minutes
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    Rainsticks, filled with pebbles and seeds, create sounds that mimic falling rain. Instead of buying a pre-made one, how about building your own with material you can find around your house!

    1 cent - $1 per student Ages 6 - 14 10 to 30 minutes