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    APSnet
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    In this biology activity, learners use plastic pipettes to cut wells into the solid gel layer of agar in petri dishes and place solutions of simulated antigen and antibody preparations into the...

    Over $20 per group Ages 14 - 18 45 to 60 minutes
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    NOAA
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    In this activity, learners observe how salinity affects the freezing point of water by making and enjoying ice cream. Pairs of learners will combine ingredients in a plastic bag and then add...

    $5 - $10 per group Ages 6 - 14 30 to 45 minutes
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    Baylor College of Medicine
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    In this activity about food safety and nutrition, learners investigate safe food preparation by making fruit ice cream. This lesson guide includes background information, variations and bilingual ...

    $5 - $10 per group Ages 8 - 14 30 to 45 minutes
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    Lawrence Hall of Science
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    In this outdoor activity, learners find out the color of food that jays prefer and then try to change the birds' preference by altering the taste of the food with salt. Learners consider how...

    $10 - $20 per group Ages 8 - 14 45 to 60 minutes
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    NOAA
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    In this quick activity, learners observe how salinity and temperature affect the density of water, to better understand the Great Ocean Conveyor. Learners observe what happens when they add...

    1 cent - $1 per group Ages 6 - 14 5 to 10 minutes
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    Lawrence Hall of Science
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    In this outdoor activity, learners compare the moisture released from different kinds of leaves and from different parts of the same leaf, by observing the color change of cobalt chloride paper....

    $10 - $20 per group Ages 8 - 18 45 to 60 minutes
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    University of Utah
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    In this genetics activity, learners discover how to extract DNA from green split peas. This resource guide includes a brief explanation of DNA and provides suggestions for ways to experiment with...

    $1 - $5 per student Ages 8 - 18 30 to 45 minutes
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    APSnet
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    In this activity related to plant biotechnology, learners extract DNA from fruit to investigate how it looks and feels. The procedure is similar to what scientists have to do before they can use...

    $10 - $20 per group Ages 11 - 18 45 to 60 minutes
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    National Health Museum
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    This lesson is designed to serve as an introduction to the immune system. It can stand alone or it can lead into further studies of the immune system. The primary focus of this inquiry-based lesson...

    Over $20 per group Ages 14 - adult 2 to 4 hours
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    Oregon Museum of Science and Industry
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    In this experiment, learners will conduct chemical and physical tests to identify mystery substances. This experiment is very flexible, allowing educators to determine the number of unknowns to...

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

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