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St. George's National School, Balbriggan Co. Dublin

Salt Crystals January 2025

30th Apr 2025
First Class were curious to find out how to make salt crystals. We know that salt dissolves in H2O, but we learned that we can dissolve a lot more salt if we add hot water instead of cold water. Over the following weeks we observed tiny salt crystals forming around the pipe-cleaners. After around two months, all the H2O had evaporated and we were left with a loads of salt crystals!