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In this series of highly “involving” activities, students learn about the concepts of dissolving, evaporation, and crystallization. Using familiar substances, they create homemade “gel-o,” colorful disks, and crystals that emerge on black paper to make a “starry night.” Does the substance disappear? If not, where does it go? Could it ever come back? As young students ponder these ideas and gain experience mixing and observing differing solutions, they benefit from this very positive early experience with chemistry.
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