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    The Exploratorium
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    In this activity, learners construct their own small catapults using simple materials. Learners follow visual instructions to build their launching device. This activity can be used as a lesson on...

    $10 - $20 per student Ages 8 - 18 1 to 2 hours
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    The Exploratorium
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    In this activity, learners create models of ionic compounds and observe the chemical formula of binary molecules they have created. Learners record their data in a table and draw conclusions by...

    free Ages 14 - adult 1 to 2 hours
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    The Exploratorium
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    In this geology activity, learners create a model using a mixture of salt and sand inside a CD case. When the case is tilted or inverted, the mixture dramatically sorts into a layered pattern. With...

    $5 - $10 per group Ages 11 - 18 1 to 2 hours
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    The Exploratorium
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    In this activity, learners use rice grains to model the composition of the atmosphere of the Earth today and in 1880. Learners assemble the model while measuring percentages. This activity also...

    $1 - $5 per group Ages 11 - 18 1 to 2 hours
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    The Exploratorium
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    In this activity, learners simulate the process of DNA fingerprinting by using electricity to separate colored dyes. Learners use simple materials to assemble a comb (electrophoresis chamber) to...

    Over $20 per group Ages 11 - 18 1 to 2 hours

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