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    The Exploratorium
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    In this activity, learners can create five-layer density columns by employing one of three (or all) methods. Method 1 gives the names of the liquids and the order for adding them, and its goal is...

    $5 - $10 per group Ages 11 - 18 45 to 60 minutes
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    Oregon Museum of Science and Industry
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    Learners combine different plant solutions -- made from fruits, vegetables, and flowers -- with equal amounts of vinegar (acid), water (neutral), and ammonia (base). They compare the color changes...

    1 cent - $1 per group Ages 11 - adult Under 5 minutes
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    Oregon Museum of Science and Industry
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    In this activity, learners mix ingredients in a plastic bag, and then identify three characteristics of a chemical reaction: production of heat, color change, and production of a gas. Turmeric, a...

    $5 - $10 per group Ages 11 - 18 10 to 30 minutes
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    American Chemical Society
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    In this activity on page 4 of the PDF, learners conduct some quick and easy tests to determine the differences between water and other liquids that look very similar to water. Learners compare how...

    $1 - $5 per student Ages 6 - 14 10 to 30 minutes
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    Community Science Workshop Network
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    In this activity, learners extract DNA from a strawberry and discover that DNA is in the food they eat. Learners use simple materials to break open the cells of a strawberry and see DNA with their...

    $1 - $5 per student Ages 11 - 14 45 to 60 minutes
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    Oregon Museum of Science and Industry
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    This activity uses turmeric, a common spice in curry, as an indicator for acidity and basicity. Turmeric is yellow in acid and neutral substances, but turns bright red with bases. Learners can use...

    $1 - $5 per student Ages 11 - 14 10 to 30 minutes
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    Mount Holyoke College
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    In this experiment, learners separate different types of molecules in marker inks (using a technique called "thin layer chromatography"). Learners mark dots at the bottom of a strip of...

    $1 - $5 per student Ages 4 - 8 30 to 45 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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    Oregon Museum of Science and Industry
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    In this activity, learners create a mixture of water, alcohol and permanent marker ink, and then add salt to form a colored alcohol layer on top of a colorless water layer. The reason this happens...

    $1 - $5 per group Ages 11 - 14 45 to 60 minutes
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    Oregon Museum of Science and Industry
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    Learners use a simple process to extract DNA from strawberries. After mashing a strawberry in a plastic bag, they add soap solution (to break open the cell and nuclear membranes), meat tenderizer ...

    $1 - $5 per group Ages 8 - 14 10 to 30 minutes

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