Explaining The Universe on Instagram: "A water molecule is tiny but mighty. It’s made of two hydrogen atoms and one oxygen atom, hooked together in a bent shape like a little boomerang. This bend makes it polar, with a slightly negative oxygen end and slightly positive hydrogen ends. Because of this polarity, water molecules stick to each other with hydrogen bonds, giving water its weird and wonderful properties—like high boiling point, surface tension, and the ability to dissolve so many substa