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    Twin Cities Public Television
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    This activity (on page 3 of the PDF) is a full inquiry investigation into how some desert birds keep their cool. Learners will make four model Saguaro nests out of Styrofoam ice chests, insert...

    $10 - $20 per group Ages 8 - 14 1 to 7 days
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    Science Museum of Minnesota
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    Build a fruit fly trap out of a 2-liter plastic bottle and some rotten fruit! Fruit flies are easy to catch in warm weather. Once you catch some, you will be able to see their life cycle up-close....

    1 cent - $1 per student Ages 4 - 11 1 to 4 weeks
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    Twin Cities Public Television
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    In this quick activity (page 2 of PDF), learners will model how large depressions near the top of a volcano are formed by using an inflating and deflating balloon submerged in flour. The model...

    $5 - $10 per group Ages 8 - 14 30 to 45 minutes
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    University of Nebraska State Museum
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    This activity (on pages 23-27) lets learners simulate the work of scientists who take core samples of Earth's rocky layers to determine geological history. Learners create a model of Earth&...

    $1 - $5 per group Ages 8 - 14 45 to 60 minutes
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    Lawrence Hall of Science
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    In this outdoor activity, learners build bird nests and place them in the activity area, then play the role of naturalists as they try to locate each other's nests. Learners consider how bird...

    $1 - $5 per group Ages 6 - 11 45 to 60 minutes
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    Lawrence Hall of Science
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    In this outdoor science/art activity, learners investigate spider webs by using string to create their own spider webs. Before making their own web models, learners look closely at spider webs in...

    $1 - $5 per student Ages 6 - 14 45 to 60 minutes
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    Aquarium of the Bay
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    In this activity (page 2 of pdf), learners craft a model of a skate egg case and come to understand that cartilaginous fish such as sharks and shakes employ reproductive strategies that differ from...

    1 cent - $1 per student Ages 6 - 11 1 to 7 days
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    Integrated Teaching and Learning Program, College of Engineering, University of Colorado at Boulder
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    In this design-based activity, learners explore environments, ecosystems, energy flow and organism interactions by creating a model biodome. Learners become engineers who create model ecosystems....

    $10 - $20 per group Ages 11 - 14 4 to 24 hours
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    The Exploratorium
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    In this activity, learners make a 3-D model of magnetic fields by inserting a small, strong magnet into a sphere. When learners sprinkle used staples onto the sphere, they'll see how the field...

    $1 - $5 per student Ages 8 - 14 5 to 10 minutes
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    Lawrence Hall of Science
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    In this outdoor activity and game, learners explore how animals adapt for survival through coloration, markings and camouflage. By inventing, designing and hiding their own animal models, and...

    $10 - $20 per group Ages 6 - 14 45 to 60 minutes

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