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Ziptop Bag Chemistry
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In this chemistry activity, learners perform three chemical reactions in a sealed zip-top bag. Learners will record their observations and classify the changes as chemical or physical.
Chromatography
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In this activity (page 3 of the PDF), learners will observe a physical change.
Sugar/Salt Crystals
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In this chemistry activity (page 1 of the PDF), learners will observe a physical change.