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    The California Study, Inc.
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    In this activity, learners explore how various energy sources can be used to cause a turbine to rotate. Learners will construct a turbine that is not strong enough to operate an electrical...

    $1 - $5 per group Ages 8 - 14 1 to 2 hours
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    NOAA
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    In this activity, learners make a model of a pollution spill that occurred at Bangs Lake in Mississippi and measure water quality parameters in their model. Learners then study the actual spill,...

    Over $20 per group Ages 14 - 18 2 to 4 hours
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    NASA
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    In this experiment, learners investigate how the size of a wing affects lift. Learners count the number of pennies an egg crate plane wing can hold until the plane will no longer fly. Learners...

    $10 - $20 per group Ages 8 - 11 45 to 60 minutes
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    NASA
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    In this activity, learners work in teams to investigate the relationship between mass, acceleration, and force as described in Newton's second law of motion. During a set of experiments,...

    $10 - $20 per group Ages 8 - 18 45 to 60 minutes
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    Twin Cities Public Television
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    This is an activity (located on page 3 of the PDF) about diffusion of small molecules across cell membranes. Learners will use gelatin to represent a cell and dye to represent molecules to model...

    $10 - $20 per group Ages 8 - 14 1 to 7 days
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    NASA
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    In this small-group activity, learners assume the roles of pilots, air traffic controllers, and NASA scientists to solve five Air Traffic Control (ATC) problems. Learners examine different distance...

    $5 - $10 per group Ages 8 - 18 1 to 7 days