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    Institute of Physics
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    In this physics demonstration, learners will be surprised when a lemon slice appears to magically levitate within a pint glass. This is a simple trick that involves several complex physical...

    1 cent - $1 per group Ages 8 - adult Under 5 minutes
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    University of Washington
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    Use this activity (10th on the page) to help learners explore memory and how sometimes your brain makes up its own memories. Learners will read and try to remember the words in list #1. Five...

    free Ages 8 - 18 5 to 10 minutes
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    Institute of Physics
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    In this physics demonstration, learners will be surprised when a handkerchief holds water in an upside-down glass. They will be especially shocked when you hold the glass over their head and...

    free Ages 4 - adult Under 5 minutes
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    Institute of Physics
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    In this demonstration about momentum, use physics to distinguish between a hard-boiled egg and a raw egg without cracking them open. Learners will discover that hard-boiled eggs are much easier to...

    1 cent - $1 per group Ages 4 - adult Under 5 minutes
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    University of Washington
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    In this activity (13th on the page), learners complete a simple illusion trick to see through their own hand. Learners roll up a piece of notebook paper into a tube, arrange their hands in a...

    1 cent - $1 per group Ages 8 - 18 Under 5 minutes
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    NRICH
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    In this number puzzle/trick, learner #1 thinks of a number between 1 and 63. Learner #2 shows learner #1 six cards and asks them whether the cards contain their number. Learner #2 uses this...

    1 cent - $1 per group Ages 14 - 18 5 to 10 minutes
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    Institute of Physics
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    In this physics demonstration, learners are challenged to break a raw egg just by squeezing it. Learners will be shocked by their inability to complete the deceivingly simple challenge. Use this...

    1 cent - $1 per group Ages 4 - adult Under 5 minutes
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    The Exploratorium
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    In this activity about depth perception, learners create an optical illusion in a shoe box. By looking through the viewing hole, learners explore how they can trick their brain into thinking that...

    $1 - $5 per student Ages 6 - 18 10 to 30 minutes
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    The Exploratorium
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    In this trick, hold your hand over a burning candle without getting burned, by reflecting and transmitting the light of two candles. This activity is best suited as a demonstration.

    $1 - $5 per group Ages 8 - 18 5 to 10 minutes
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    The Exploratorium
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    In this activity about light and reflection, learners discover that what you see is often affected by what you expect to see. Learners hold on to a device consisting of two mirrors glued back to...

    Over $20 per group Ages 8 - 14 5 to 10 minutes

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