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    Oregon Museum of Science and Industry
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    In this chemistry activity, learners prepare two petri dishes, one filled with water and one filled with milk. Using food coloring and soap, they discover that milk is an emulsion, a special...

    $1 - $5 per group Ages 4 - 18 5 to 10 minutes
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    COSI
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    In this weather activity which requires adult supervision, learners will get a chance to make a cloud right here on Earth! They learn about the different ingredients a cloud needs in order to form,...

    1 cent - $1 per student Ages 8 - 14 5 to 10 minutes
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    COSI
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    In this physics activity (page 3 of the PDF), learners will see firsthand that air takes up space and has pressure by attempting to inflate a balloon inside of a bottle. Though this activity was...

    1 cent - $1 per student Ages 6 - 11 5 to 10 minutes
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    The Exploratorium
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    Ocean acidification is a problem that humans will have to deal with as we release more and more carbon dioxide into the atmosphere. This activity demonstrates how water can become acidic with the...

    $1 - $5 per student Ages 8 - 18 5 to 10 minutes
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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 make a layered drink with liquids of different densities. The molecules of a denser liquid, like chocolate syrup, are arranged more...

    $1 - $5 per student Ages 6 - 14 5 to 10 minutes
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    Integrated Teaching and Learning Program, College of Engineering, University of Colorado at Boulder
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    Learners blow into balloons and collect their breath--carbon dioxide gas (CO2). They then blow the CO2 from the balloon into a solution of acid-base indicator. The indicator changes color to show...

    $1 - $5 per student Ages 8 - 14 5 to 10 minutes
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    Oregon Museum of Science and Industry
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    In this activity (on page 2 of the PDF), the learner places a golf ball between salt water and colored fresh water. The golf ball is not as dense as the saltwater. Therefore, the ball floats on top...

    $1 - $5 per student Ages 6 - 14 5 to 10 minutes
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    Oregon Museum of Science and Industry
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    Learners use filter paper and water to analyze six different markers. They mark the paper with ink, and dip the paper in water. The water travels up the paper and dissolved ink travels with it. The...

    $1 - $5 per group Ages 4 - 14 5 to 10 minutes
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    American Chemical Society
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    In this simple activity, learners see the production of a gas, which visibly fills up a balloon placed over the neck of a bottle. Inside the bottle, water and an effervescent antacid tablet are...

    1 cent - $1 per student Ages 6 - 14 5 to 10 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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