Several times over the past years, I have wished with all my heart I could call Mr. Migaki, my favorite teacher of all time who sparked curiosity and the love of science in my fifth-grade self.
I needed to ask him about minerals and crystals and why borax and washing soda—both of them ingredients in our homemade laundry liquid and powder detergents—can be powdery soft one day and hard as a rock the next.