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    Oregon Museum of Science and Industry
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    Learners use a universal indicator to test the amount of sodium hydroxide needed to change the pH of plain water compared with the amount needed to change the pH of gelatin. Learners discover that...

    $1 - $5 per group Ages 14 - adult Under 5 minutes
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    Oregon Museum of Science and Industry
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    Learners pour equal amounts of coffee, mineral oil, corn syrup, and alcohol into a beaker. The liquids resolve into stacked layers, and learners can infer which liquids are the most and least dense...

    $1 - $5 per group Ages 11 - 18 10 to 30 minutes
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    Oregon Museum of Science and Industry
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    Learners write their initials by applying different clear "magic ink" solutions to separate pieces of paper and then "develop" the inks with other clear solutions. One "...

    $1 - $5 per group Ages 14 - adult Under 5 minutes
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    University of Illinois Urbana-Champaign
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    In this activity, learners test and compare the physical properties of thermoplastic polymers. Learners compare different plastics based on their color, degree of transparency, texture, and density...

    $1 - $5 per group Ages 14 - adult 30 to 45 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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    The Science House
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    In this chemistry activity, learners explore density by using four solids and 6 liquids to create colorful, layered rows. This activity can be done as a demonstration or lab, with learners trying...

    $1 - $5 per group Ages 6 - 18 5 to 10 minutes