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    National Health Museum
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    This laboratory exercise is designed to show learners how DNA can easily be extracted from onion cells. It includes an optional test for the presence of DNA. Use this experiment to supplement any...

    $5 - $10 per group Ages 11 - 18 45 to 60 minutes
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    KCET
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    This open-ended art project allows learners to create their own colorful ice sculpture by using rock salt and food coloring on a solid block of ice. The entire activity is like a mini-science...

    $1 - $5 per student Ages 4 - 8 10 to 30 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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    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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    Centers for Ocean Sciences Education Excellence
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    In this activity, learners explore the concept of density-driven currents (thermohaline circulation) and how these currents are affected by climate change. Learners use colored ice cubes, water,...

    $10 - $20 per group Ages 8 - adult 1 to 2 hours