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    The Exploratorium
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    Spin a short piece of PVC pipe that's been marked up, and watch a triangle appear. Enjoy this optical illusion from the Exploratorium's Science Snack series.

    free Ages 4 - 18 5 to 10 minutes
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    The Exploratorium
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    Get a roll of pennies, throw them on the ground, then remove those that only show tails, and repeat with the ones left over. In this Exploratorium Science Snack, this is how you create a model of...

    free Ages 8 - 18 5 to 10 minutes
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    The Exploratorium
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    Walk a toy to the edge of its doom, maybe it'll fall off the edge of a table, but it will safely stop right before falling. You can use an off-the-shelf toy or any toy that can slide with some...

    free Ages 6 - 14 Under 5 minutes
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    The Exploratorium
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    In this activity, learners observe what happens when they give a light source like a neon glow lamp a "Bronx Cheer." The lights appear to wiggle back and forth and flicker when learners...

    free Ages 8 - 14 5 to 10 minutes
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    The Exploratorium
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    Did you know that you would be a different age if you lived on Mars? It's true! In this activity, you'll learn about the different rotation and revolution periods of each of the planets...

    free Ages 8 - 18 10 to 30 minutes

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