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    New York Hall of Science
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    Does yeast breathe? Find out by watching how plastic bags filled with yeast, warm water and different amounts of sugar change over time. Demonstrate the interaction of microorganisms and the carbon...

    $1 - $5 per student Ages 6 - 14 45 to 60 minutes
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    New York Hall of Science
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    In this activity, learners will discover why there are holes in bread. By mixing water, yeast and sugar, learners will see bubbles rise from the bottom of the tube as the yeast metabolizes the...

    $10 - $20 per group Ages 8 - 18 30 to 45 minutes
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    New York Hall of Science
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    Don't scream for ice cream -- make it with milk, sugar, flavoring and some 'salt-water' ice. Discover the chemistry of ice cream by creating your own. <b>[Activity is publicly...

    $1 - $5 per student Ages 4 - 11 10 to 30 minutes