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    The Exploratorium
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    In this activity, learners build a simple qualitative conductivity tester with a battery, bulb and foil. Then learners use the device to test if a solution, a series of solutions, and a solution...

    $5 - $10 per student Ages 11 - 18 1 to 2 hours
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    In this activity, learners stain fabrics--on purpose! Learners explore the art of natural dyeing by using dyes and substrates that are both derived from plant or animal sources as well as mordant...

    Over $20 per group Ages 11 - 18 1 to 2 hours
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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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    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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    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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    In this activity, learners explore Charles' Law in a syringe. Learners collect volume and temperature data for five different temperature samples, convert Celsius to Kelvin, and plot the data...

    1 cent - $1 per group Ages 14 - 18 1 to 2 hours
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    In this seismic simulation, learners play a "who-dunnit" game to explore earthquakes. Learners act as the source, carriers, and detectors of earthquake waves, while the group determines...

    free Ages 11 - adult 1 to 2 hours
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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