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    Lawrence Hall of Science
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    In this outdoor activity, learners use only their senses to to find the extremes of several environmental variables or physical factors: wind, temperature, light, slope and moisture. Learners also...

    $1 - $5 per group Ages 6 - 14 30 to 45 minutes
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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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    Biotechnology and Biological Sciences Research Council
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    In this activity, leaners will observe the process of natural selection on a population of birds called 'Springbeaks' over four seasons of breeding on an isolated environment called '...

    $10 - $20 per group Ages 11 - adult 45 to 60 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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    Centers for Ocean Sciences Education Excellence
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    In this activity, learners role-play the part of lake inhabitants and the aquatic exotics who displace the native species. Props are used to help demonstrate how aquatic exotic species enter a lake...

    $10 - $20 per group Ages 8 - 14 45 to 60 minutes
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    University of Utah
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    In this activity, learners examine how brine shrimp populations can survive in some of the harshest environments. Learners subject brine shrimp cysts to extreme conditions to evaluate the hardiness...

    Over $20 per group Ages 11 - 18 1 to 7 days
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    California Academy of Sciences
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    In this activity, learners visualize the differences in water density and relate this to the potential consequences of increased glacial melting. This activity can be conducted as a demonstration...

    $5 - $10 per group Ages 8 - 14 2 to 4 hours
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    University of Nebraska State Museum
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    In this graphing activity (on pages 33-40), learners investigate how much and what kinds of food sea otter pups eat during their first year of life. Learners discover that young sea otters eat more...

    1 cent - $1 per group Ages 8 - 14 1 to 2 hours
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    Oregon Museum of Science and Industry
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    Learners mix a solution of luminol with hydrogen peroxide to produce a reaction that gives off blue light. Learners discover that some chemical reactions release energy in the form of light, and...

    $1 - $5 per group Ages 4 - adult Under 5 minutes
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    Centers for Ocean Sciences Education Excellence
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    In this activity, learners are challenged to design a planktonic organism that will neither float like a cork nor sink like a stone. They are given pictures of planktonic organisms and simple...

    $5 - $10 per group Ages 8 - adult 30 to 45 minutes

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