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    Astronomical Society of the Pacific
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    This fun hands-on astronomy activity uses a variety of simple props to help learners understand why they see what they see in a telescope. They will learn about how the eye works, how to use the...

    $1 - $5 per group Ages 4 - adult 5 to 10 minutes
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    APSnet
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    In this laboratory exercise, learners will discover how many different plant hosts they can find that are infected by the same genus of a powdery mildew fungus, or how many different genera of...

    $1 - $5 per group Ages 11 - 18 45 to 60 minutes
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    American Community Gardening Association
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    In this field trip, learners visit a community garden, take a tour, and interview the gardener. In-depth lesson plans include guidelines for how to prepare for the trip, from logistics to...

    $1 - $5 per group Ages 8 - 18 4 to 24 hours
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    Lawrence Hall of Science
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    In this outdoor activity, learners discover how the environment around a building affects the growth of plants. Learners observe patterns of plant growth such as size, thickness, weeds, and damage...

    $1 - $5 per group Ages 6 - 18 30 to 45 minutes
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    COSI
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    In this weather activity (page 10 of the PDF), learners will demonstrate the changes in atmospheric pressure by constructing their own barometer. Learners will explore the concept of barometric...

    $1 - $5 per student Ages 11 - 18 1 to 7 days
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    Carleton College
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    In this activity, learners use Styrofoam to collect organisms from a pond, estuary or marine environment and then examine what they have caught with a microscope. The tiny spaces in Styrofoam...

    $1 - $5 per group Ages 8 - 18 1 to 7 days
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    The Exploratorium
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    An ordinary camera has a lens that makes an image on film. In a pinhole camera, a small hole replaces the lens. This activity provides instructions for recycling a potato chip can to make your own...

    $1 - $5 per student Ages 6 - 18 10 to 30 minutes
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    Iridescent
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    In this engineering design challenge, learners make a bird and then control its flight with attached strings. As learners work their way through the design process, they can upload descriptions and...

    $1 - $5 per group Ages 4 - 18 1 to 2 hours
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    Oregon Museum of Science and Industry
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    In this activity (on page 2 of PDF), learners create a low-tech refrigerator that requires no electricity to keep food from spoiling. It uses only clay pots, one smaller than the other and...

    $1 - $5 per student Ages 8 - 18 1 to 2 hours
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    Lawrence Hall of Science
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    In this outdoor activity linking human health to the environment, learners use their pulse rates as a measure of the effort expended in walking on different slopes. By checking their pulse rates...

    $1 - $5 per group Ages 8 - 18 45 to 60 minutes

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