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    National Health Museum
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    In this activity, learners simulate nature's water filtration system by devising a system that will filter out both visible and invisible pollutants from water. Each group is asked to design a...

    $5 - $10 per group Ages 8 - 18 1 to 2 hours
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    NOAA
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    In this activity, learners discover if carbon dioxide has an effect on temperature. Learners compare the temperatures of two bottles filled with water, one with seltzer tablets and one without,...

    1 cent - $1 per group Ages 6 - 14 1 to 2 hours
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    Museum of Science and Industry, Chicago
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    Learners place cut flowers in colored water and observe how the flowers change. The flowers absorb the water through the stem and leaves. By watching the journey of harmless food coloring, learners...

    $1 - $5 per student Ages 8 - 18 1 to 7 days
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    Museum of Science and Industry, Chicago
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    Learners use a transparent plastic glove as a container to grow seeds. A different kind of seed can be planted in each finger. A few days after planting, learners will see the seeds begin to sprout...

    $1 - $5 per student Ages 6 - 14 1 to 4 weeks
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    4-H
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    In this experiment, learners use a blow dryer and water bottle to observe and record changes in air pressure caused by changes in temperature. Educators can use this activity to explain how changes...

    $5 - $10 per group Ages 8 - 14 5 to 10 minutes
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    4-H
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    In this environmental science activity, learners research what is essential for plant life and the necessary components of soil to support plants. Then, learners plan, design and build compost bins...

    Over $20 per group Ages 11 - 14 1 to 4 weeks
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    4-H
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    In this sunny day experiment, learners measure and compare how quickly light and dark colored materials absorb heat. An extension included in this activity guide suggests learners next design and...

    $5 - $10 per group Ages 8 - 14 10 to 30 minutes
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    4-H
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    In this plant science activity, learners conduct four experiments to observe how plants respond to sunlight and gravity. Learners record their observations on a data table for five days to note...

    $10 - $20 per group Ages 8 - 14 1 to 7 days
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    4-H
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    In this activity, learners explore how to protect their skin while applying pesticides to plants. Learners conduct a series of simulation experiments and discover that some clothing fabrics provide...

    $10 - $20 per group Ages 8 - 14 10 to 30 minutes

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