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    This activity (located on page 3 of the PDF) is a full inquiry investigation into tree growth rates. Groups of learners will count tree rings to determine each tree’s age. A thorough sample of...

    $10 - $20 per group Ages 8 - 14 45 to 60 minutes
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    This is a quick activity (on page 2 of the PDF) that illustrates how nanoscale structures, so small they're practically invisible, can produce visible/colorful effects. Learners will use clear...

    $1 - $5 per group Ages 8 - 14 10 to 30 minutes
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    This activity (located on page 3 of the PDF) is a full inquiry investigation into biodiversity of a given habitat. Groups of learners will work in pairs or small groups and conduct a bioblitz of a...

    $5 - $10 per group Ages 8 - 14 1 to 2 hours
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    In this activity, learners create a star show and discover how they can prevent light pollution. Using simple materials, learners first design constellation boxes. Next, learners use their...

    $5 - $10 per group Ages 8 - 14 1 to 2 hours
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    This activity (on page 2 of the PDF) is a full inquiry investigation into sound. Groups of learners will use a decibel meter or a simple set of benchmark sounds to record and quantify sound levels...

    Over $20 per group Ages 8 - 14 2 to 4 hours
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    In this activity (page 1 of the PDF), learners will stand twelve feet apart swinging a rope at the slowest tempo possible while someone uses a stopwatch to record the number of twirls per minute....

    $1 - $5 per group Ages 8 - 14 10 to 30 minutes
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    In this activity (page 1 of the PDF), learners will use a home video camera with a “night vision” mode to test how various inks appear outside the spectrum of visible light. In a darkened room,...

    Over $20 per group Ages 8 - 14 30 to 45 minutes
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    This activity (on page 2 of the PDF) is a full inquiry investigation into sound frequency. Groups of learners will use an electronic keyboard (if one is available) to identify which note on the...

    $5 - $10 per group Ages 8 - 14 1 to 2 hours
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    This activity (located on page 3 of the PDF) is a full inquiry investigation into Bernoulli’s principle and airplane wings. Learners will design and build their own airplane wing models out of...

    $5 - $10 per group Ages 8 - 14 45 to 60 minutes
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    In this activity (on page 1 of the PDF), learners will use a magnifier to carefully examine samples of sand from different locations. They record their observations regarding the different grain...

    $5 - $10 per group Ages 8 - 14 45 to 60 minutes

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