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    New York Hall of Science
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    Make a hilarious honker! Fasten a piece of string through a hole in the end of a plastic cup and discover the hilarious sounds you can make. Find out how the length, tautness and wetness of the...

    1 cent - $1 per student Ages 6 - 11 10 to 30 minutes
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    Children's Museum Of Houston
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    Use this recipe to create everybody's favorite polymer -- FLUBBER! This resource includes instructions on how to make flubber as well as information on the chemistry behind the strange...

    1 cent - $1 per student Ages 4 - 14 5 to 10 minutes
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    WGBH
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    In this playful, goopy activity, learners mix two liquids to create a solid (that sometimes acts like a liquid ), using basic household materials such as borax and glue. Learners experiment with...

    $1 - $5 per student Ages 6 - 11 45 to 60 minutes
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    New England Aquarium
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    In this activity, learners explore how salt water freezes in comparison to fresh water. Use this experiment to consider how pond animals survive cold winters in comparison to animals that live in...

    1 cent - $1 per group Ages 6 - 14 1 to 2 hours
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    The Science House
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    In this chemistry activity, learners use spaghetti to explore density and chemical reactions. Learners will discover how a solution of baking soda and vinegar can make spaghetti float and even ...

    $1 - $5 per group Ages 6 - 18 5 to 10 minutes
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    University of Wisconsin-Madison
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    Learners make kimchee or sauerkraut, which is really just fermented cabbage, in a 2-liter plastic bottle. The fermentation process takes from 3 days to 2 weeks to complete, and learners measure the...

    $1 - $5 per group Ages 4 - 14 1 to 4 weeks
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    WGBH
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    In this activity, learners create and reveal secret messages written with invisible ink! The invisible ink is actually a baking soda solution, and the magical revealing liquid is fruit juice. The...

    $1 - $5 per group Ages 6 - 11 45 to 60 minutes