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    Twin Cities Public Television
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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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    Lawrence Hall of Science
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    In this outdoor activity/field trip, learners conduct experiments to explore where dragonflies and damselflies perch or rest, and how the flies change behavior in reaction to other flies or fly...

    $5 - $10 per group Ages 6 - 18 45 to 60 minutes
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    Lawrence Hall of Science
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    In this outdoor activity, learners find the swollen bumps known as "galls" on various plants and get a closeup look at the parasitic animals living inside. Galls form on various plants...

    $5 - $10 per group Ages 8 - 18 45 to 60 minutes
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    Twin Cities Public Television
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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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    Colorado State University
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    In this activity, learners explore conservation of energy by experimenting with a solar cell light device. Learners will set the solar cell in the sun for varying times to charge the battery and...

    $1 - $5 per group Ages 8 - 14 45 to 60 minutes
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    WGBH
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    In this engineering activity (page 3 of PDF), young learners investigate how a pole can be made stable by “planting” its base in the ground or adding supports to the base. First, learners observe...

    $1 - $5 per group Ages 4 - 8 30 to 45 minutes
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    Lawrence Hall of Science
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    In this outdoor, ocean-side activity, learners investigate the distribution of organisms in the upper region of the intertidal zone. Many coastal animals survive long exposures to air, high...

    $10 - $20 per group Ages 8 - 18 45 to 60 minutes
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    Lawrence Hall of Science
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    In this outdoor activity, learners investigate the relationship between the slope of a trail and soil erosion. Using both math and science skills, learners gain awareness of how human activities...

    $10 - $20 per group Ages 8 - 18 45 to 60 minutes
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    EPA
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    This lesson plan enables learners to explore the differences between weather and climate. They collect local weather data for a defined period of time, and then compare these data with longer-term...

    1 cent - $1 per group Ages 11 - 14 1 to 4 weeks
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    Science Museum of Minnesota
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    In this activity, learners make a paper cone and use it in a window to measure the length of the shadow over the course of a day. Learners then repeat the same experiment a month later. In another...

    1 cent - $1 per student Ages 6 - 11 1 to 4 weeks

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