Dissolving things in the universal solvent water is an everyday experience for almost all of us. We don’t have a lot of trouble dissolving honey in hot tea, but when it comes to sweetening cold iced tea, it is almost impossible. Obviously, water is not really a “universal solvent”—as it is sometimes called—otherwise we couldn’t find anything to keep it in. But it does dissolve more substances than any other liquid in common use. This story provides an opportunity to show students the effect of temperature on dissolving substances in liquid and to make the distinction between dissolving and melting. For older students, learning about the molecular structure of water might be appropriate.