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    Twin Cities Public Television
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    In this activity, learners conduct a waste audit and use their findings to implement a plan for reducing trash. Learners measure trash, sort by categories (compostable, recyclable, etc.) and...

    $5 - $10 per group Ages 8 - 14 1 to 2 hours
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    Omaha's Henry Doorly Zoo
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    In this field study, learners discover how to collect data in the field and how their efforts can help certain animals, specifically, amphibians. The field study allows learners to go into the...

    Over $20 per group Ages 8 - adult 2 to 4 hours
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    IEEE
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    In this activity, learners explore how civil engineers solved the challenge of moving water via irrigation. Learners work in teams of "engineers" to design and build their own "...

    Over $20 per group Ages 8 - 18 1 to 2 hours
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    IEEE
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    In this activity, learners explore the function and engineering of dams and how dams have many uses and solve many problems in the world. Learners work in teams to engineer their own dam structure...

    $10 - $20 per group Ages 8 - 18 1 to 2 hours
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    Twin Cities Public Television
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    In this activity, learners put on their naturalist hats and explore the world around them. This activity challenges learners to take a close look at local habitats, determine if area animals have...

    free Ages 8 - 14 2 to 4 hours
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    4-H
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    In this thought-provoking activity, learners plan a hypothetical project to build and operate wind turbines in their community. Learners research such topics as available wind source, cost, noise,...

    free Ages 8 - 14 2 to 4 hours
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    IEEE
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    In this activity, learners explore how engineers design devices that can detect the presence of pollutants in the air. Learners work in teams of "engineers" to design and build their own...

    $10 - $20 per group Ages 8 - 18 1 to 7 days
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    NOAA
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    In this experiment, learners examine the way oil affects bird feathers and test different cleanup methods to find out which works best. Learners answer questions throughout the investigation,...

    $1 - $5 per group Ages 6 - 14 10 to 30 minutes
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    Twin Cities Public Television
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    In this physical sciences activity, learners explore how passive solar design increases energy efficiency. Learners test paperboard models of different building designs to discover how the design...

    $1 - $5 per group Ages 8 - 14 1 to 2 hours
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    American Museum of Natural History
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    In this activity, learners make a miniature greenhouse or "terrarium" to explore the greenhouse effect. Learners will first construct their model greenhouse using a clear, tall airtight...

    $1 - $5 per student Ages 8 - 18 1 to 7 days

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