It didn’t fall in shovelable amounts and was green instead of white, but the cups of “instant snow” that were passed around to a group of Chicago-area high school science teachers in IIT’s Engineering 1 building made as strong an impression as a summertime blizzard. The demonstration of the powdery hydrophilic sodium polyacrylate polymer combined with varying amounts of water (some=fluffy clusters; lots=slush) was just one of many held as part of the ASM Materials Camp®–Teachers the week of July 8–12 on IIT Main Campus.

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