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    Oregon Museum of Science and Industry
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    In this activity (on the left side of page 5, continued on the right side of page 4 of the PDF), learners make models of colorful butterflies. The butterflies are made from pipe cleaners and either...

    1 cent - $1 per student Ages 4 - 6 10 to 30 minutes
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    Oregon Museum of Science and Industry
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    Learners will explore the scientific mystery behind a disappearing group of trees by examining data and attempting to explain the decline. They make a model of a riverbank and then simulate the...

    1 cent - $1 per group Ages 11 - 14 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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    Learners compare the properties and solubilities of Styrofoam (TM), ecofoam packing peanuts, and popcorn. First, the solubility of each substance is tested in water. A drop of iodine is added to...

    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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    Learners add acid rain (nitric acid) to two cups that represent lakes. One cup contains limestone gravel and the other contains granite gravel. Learners also add an indicator to each solution that...

    1 cent - $1 per group Ages 14 - adult 5 to 10 minutes