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    The Exploratorium
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    This is an online exhibit about color perception. Learners set a random background color and then try to mix red, blue, and green light to match. Although this is a perception activity, it also...

    free Ages 6 - 18 5 to 10 minutes
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    The Exploratorium
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    In this activity, learners balance chemical equations and discover the law of conservation of mass. Learners use coins to model molecules to balance the equations.

    free Ages 14 - 18 10 to 30 minutes
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    The Exploratorium
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    In this hands-on activity, learners make the world's simplest Cartesian diver, using only a plastic bottle, some water, and a condiment packet. A Cartesian diver is a classic science...

    free Ages 6 - adult 5 to 10 minutes
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    The Exploratorium
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    In this activity, learners measure and calculate the amount of cubic feet various containers contain. Next, learners investigate cubic feet per second (cps), by carrying jugs in one second. This...

    free Ages 11 - 18 45 to 60 minutes
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    The Exploratorium
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    We listen to stereo music systems, tv's, and radios because it simulates being where the sound originates. Sound is simply arriving at one ear before the other and you instinctively know its...

    free Ages 4 - 14 Under 5 minutes
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    The Exploratorium
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    Play with a slinky and make transverse waves. In this simple Exploratorium Science Snack, learners will experience making waves and will learn the different parts of a wave.

    free Ages 6 - 14 Under 5 minutes
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    The Exploratorium
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    In this online activity, learners experience the thrill of pickle making, and explore how a cucumber becomes a pickle. In this "virtual kitchen," leaners discover that pickling takes...

    free Ages 6 - 14 5 to 10 minutes
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    The Exploratorium
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    We don't normally view people upside down and so our brains aren't accustomed to it. However, when a portrait of a person is upside down, but some of the features on the upside down face...

    free Ages 4 - 18 Under 5 minutes
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    The Exploratorium
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    In this activity, learners make a scale model of an atom to see how big or how small an atom is compared to its nucleus. Learners will realize that most of matter is just empty space! Learners will...

    free Ages 14 - 18 30 to 45 minutes
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    The Exploratorium
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    In this activity, learners use their hands as tools for indirect measurement. Learners explore how to use ratios to calculate the approximate height of something that can't be measured...

    free Ages 11 - 14 10 to 30 minutes

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