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    Oregon Museum of Science and Industry
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    In this experiment, learners will conduct chemical and physical tests to identify mystery substances. This experiment is very flexible, allowing educators to determine the number of unknowns to...

    $5 - $10 per group Ages 8 - 14 45 to 60 minutes
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    WGBH
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    In this tasty activity, learners make their own ice cream any day of the year in an exploration of heat and cold. Highlights include freezing and melting and the transition from liquid to solid....

    $1 - $5 per student Ages 6 - 11 45 to 60 minutes
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    BioEd
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    In this activity about combustion and energy, learners observe a burning candle in a sealed jar and the burning of white sugar. The first part of the activity (candle burning) should be conducted...

    $1 - $5 per group Ages 8 - 14 45 to 60 minutes
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    Twin Cities Public Television
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    In this engineering activity, learners design and build a mechanical arm to lift a small item. Learners must follow certain design constraints as they build an arm that can lift a paper cup from...

    $5 - $10 per group Ages 8 - 14 45 to 60 minutes
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    University of Nebraska State Museum
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    In this activity (on pages 22-33), learners do the kind of work genetic scientists do, sorting and comparing (images of) genetic material strands called chromosomes. First, learners use two meters...

    1 cent - $1 per group Ages 8 - 14 45 to 60 minutes
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    WGBH
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    In this design challenge activity, learners build a four-stringed instrument that can play a tune. This lesson plan includes information on sound energy and pitch and the design process, as well as...

    $1 - $5 per student Ages 8 - 14 45 to 60 minutes
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    University of Nebraska State Museum
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    This activity (on pages 7-13) has pairs of learners survey an array of similarities and differences between them. The differences survey worksheet focuses on genetically inherited physical features...

    $1 - $5 per group Ages 8 - 14 45 to 60 minutes
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    Twin Cities Public Television
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    In this activity, learners build penetrometers to test leaf toughness. Biologists measure leaf toughness to study the feeding preferences of insects and bugs.

    $1 - $5 per group Ages 8 - 14 45 to 60 minutes
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    University of Nebraska State Museum
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    In this activity (on pages 10-15), learners investigate starch in human diets and how plants make starch (carbohydrates) to use as their food source. Testing with a dropper of iodine in Part One,...

    $5 - $10 per group Ages 8 - 14 45 to 60 minutes
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    WGBH
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    During this interactive "survival" game, students learn about the importance of camouflage and how it helps animals to blend into their surroundings, as either predator or prey. Learners...

    $1 - $5 per group Ages 6 - 11 45 to 60 minutes

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