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    Oregon Museum of Science and Industry
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    In this chemistry activity (on page 2 of the PDF), learners corrode a penny in a cup with vinegar, salt water, and a source of iron (nails, paper clips, or twist ties). The combination of salt and...

    1 cent - $1 per student Ages 6 - 14 1 to 7 days
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    Oregon Museum of Science and Industry
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    Eggs are placed in vinegar for one or two days to dissolve the shells. Then, learners place the eggs in water or corn syrup and observe them over a period of days. Through the process of osmosis,...

    $1 - $5 per student Ages 6 - 14 1 to 7 days
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    Oregon Museum of Science and Industry
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    Make a classic polymer toy using Borax and white glue! It's stretchy and bouncy and acts sort of like a solid and sort of like a liquid (similar to Silly Putty). This recipe suggests ways to...

    $1 - $5 per group Ages 4 - adult 10 to 30 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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    Oregon Museum of Science and Industry
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    During this activity, learners will make different versions of "ooze" using varied proportions of detergent and glue. Learners will observe, evaluate, and document different ooze...

    $5 - $10 per group Ages 6 - 14 10 to 30 minutes