|Address||P.O. Box 219 Batavia, IL 60510|
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All students, young and old, will be captivated by the amazing Polyurethane Foam: Physical and Chemical Changes—ChemTopic™ Lab Activity demonstration. Mix two liquids together and watch the mixture expand as a rigid yet lightweight polyurethane foam about 30 times its original volume. Available as part of the Elements, Compounds and Mixtures—ChemTopic™ Labs digital collection. Click the link for digital collection pricing.