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    The Exploratorium
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    In this activity, learners use basic measurements of the Earth and pieces of rock and iron to estimate the mass of the Earth. Learners will calculate mass, volume, and density, convert units, and...

    free Ages 14 - 18 45 to 60 minutes
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    Howard Hughes Medical Institute
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    This guided inquiry three-part activity engages learners in thinking about the mechanism of natural selection through data collection and pattern recognition. In this scenario, learners use M&...

    $5 - $10 per group Ages 11 - 18 1 to 2 hours
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    Windows to the Universe
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    In this activity, learners investigate various appliances and electronics, discovering how much energy each uses and how much carbon dioxide (CO2) is released to produce that energy. Learners use a...

    Over $20 per group Ages 11 - 18 1 to 2 hours
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    PBS
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    In this math lesson, learners record and graph plant growth and interpret data. Learners plant seeds, and once the seeds sprout, record the change in height of the plants for several days. They...

    $5 - $10 per group Ages 8 - 11 1 to 4 weeks
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    National Health Museum
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    In this activity, learners calculate the number of milliliters of water a nearby tree transpires per day. First, teams of learners go outdoors to collect five leaves from a mulberry or cottonwood...

    $1 - $5 per group Ages 14 - 18 4 to 24 hours
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    NASA
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    In this activity, learners discover that one way to cool an object in the presence of a heat source is to increase the distance from it or change the angle at which it is faced. Learners perform an...

    1 cent - $1 per group Ages 8 - 14 1 to 2 hours
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    Howard Hughes Medical Institute
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    This guided inquiry three-part activity engages learners in thinking about the mechanism of natural selection by encouraging them to formulate questions that can be answered through scientific...

    $10 - $20 per group Ages 11 - 18 2 to 4 hours
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    The Exploratorium
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    In this math activity related to light, learners assemble a photometer and use it to estimate the power output of the Sun. Learners construct the photometer by making a grease spot on white paper...

    1 cent - $1 per student Ages 14 - 18 10 to 30 minutes
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    Railroad Commission of Texas
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    In this activity about global climate change, learners will conduct an experiment and collect data to compare the amount of carbon dioxide (CO2) in four different sources of gases. Learners will...

    $5 - $10 per student Ages 11 - 18 45 to 60 minutes
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    WGBH
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    In this activity, learners calculate their water usage (in cups and galloons) during an average shower. Learners also chart and analyze water usage during showers in their households. Use this...

    free Ages 6 - 11 45 to 60 minutes

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