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    New York Hall of Science
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    Learn about dyes and mordants (fixatives) when you tie-dye fabric with Kool-Aidâ„¢ and vinegar. The colored molecules in Kool-Aidâ„¢ form a chemical bond between the fiber and dye molecules.

    $1 - $5 per student Ages 6 - 14 10 to 30 minutes
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    New York Hall of Science
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    In this activity, learners copper-plate metal objects by placing them in a jar with pennies and vinegar. Use this activity to introduce learners to acids, metals, and chemical reactions. This...

    1 cent - $1 per student Ages 6 - 11 1 to 2 hours
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    New York Hall of Science
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    Create a chemical reaction that makes cheese! This hands-on activity demonstrates that molecules and atoms are tiny particles that make up everything around us. In this experiment, milk molecules...

    $1 - $5 per student Ages 4 - 14 10 to 30 minutes