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    The Exploratorium
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    Learn about chemical reactions by making a Bubble Bomb, a plastic bag you can pop with the power of fizz. The bubbles in the Bubble Bomb are filled with carbon dioxide, a gas that forms when...

    1 cent - $1 per student Ages 4 - 11 10 to 30 minutes
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    COSI
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    In this physics activity, learners will investigate the strength of egg shells. They will attempt to stack books on top of inverted half egg shells to see how many they can hold, and the results...

    1 cent - $1 per group Ages 6 - 11 10 to 30 minutes
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    COSI
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    In this biology activity, learners recreate the process of digestion in a zip lock bag. A bit of soda pop added to some crumbled crackers approximates how acids in the stomach dissolve food. This...

    1 cent - $1 per student Ages 8 - 11 5 to 10 minutes
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    Science Museum of Minnesota
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    Build a fruit fly trap out of a 2-liter plastic bottle and some rotten fruit! Fruit flies are easy to catch in warm weather. Once you catch some, you will be able to see their life cycle up-close....

    1 cent - $1 per student Ages 4 - 11 1 to 4 weeks
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    COSI
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    In this yummy chemistry activity which requires adult supervision, learners use sugar and water to explore how crystals form. The best part about this activity, other than witnessing really cool...

    1 cent - $1 per student Ages 6 - 18 1 to 7 days
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    Oregon Museum of Science and Industry
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    In this hands-on activity (on page 2 of the PDF), learners experiment with lemon juice and paper to create a message that can only be revealed using chemistry. Using an oven as a heat source ...

    1 cent - $1 per student Ages 6 - 14 10 to 30 minutes
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    The Exploratorium
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    This is an activity about acid-base reactions using eggs and vinegar. Learners place eggs inside a container of vinegar and leave to soak overnight. The calcium carbonate of the shell reacts with...

    1 cent - $1 per group Ages 11 - 18 10 to 30 minutes
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    COSI
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    In this chemistry activity (page 5 of the PDF), learners will see that chewing is more than just the crushing up of food; there is actually a chemical change going on at the same time. This...

    1 cent - $1 per student Ages 6 - 11 5 to 10 minutes
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    The Exploratorium
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    In this activity about osmosis, learners use a naked egg (one with a dissolved eggshell) to learn about selectively permeable membranes. This is a great activity to easily show the qualities of...

    1 cent - $1 per student Ages 11 - 18 10 to 30 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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