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    Sciencenter
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    Learners are challenged to discover the relative densities of colored liquids to create a rainbow pattern in a test tube. Five different solutions—3 mixtures of ethyl alcohol, food color and water;...

    $5 - $10 per group Ages 4 - 14 10 to 30 minutes
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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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    National Health Museum
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    In this lab exercise, learners explore diffusion, cell membranes and particle size using beets and three alcohols. Generally, learners predict that smaller alcohols will permeate more quickly, and...

    $10 - $20 per group Ages 14 - 18 10 to 30 minutes
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    NISE Network
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    In this activity, learners create a necklace of wheat germ DNA. Learners add alcohol to wheat germ so that the DNA clumps together. Use this activity to talk about how self-assembly is a process by...

    $10 - $20 per group Ages 4 - adult 5 to 10 minutes
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    New York Hall of Science
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    This activity is about collecting and analyzing DNA as part of a criminal investigation. Learners collect their own cheek cells, burst the cell membranes with detergent, and then precipitate DNA...

    1 cent - $1 per student Ages 8 - 18 10 to 30 minutes
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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 using simple materials. Use this experiment to supplement any unit on genetics and to...

    $5 - $10 per group Ages 11 - 18 45 to 60 minutes

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