The patterns of ice fractals that form when a water droplet freezes are as unique as snowflakes — and we don’t yet have a full understanding of how they form. Scientists can predict how very pure and very cold water will freeze with simulations, but impurities and dissolved compounds make studying the freezing process more complicated. Take a look at this deep dive into how water freezes to learn more: https://brnw.ch/21wSc8k | American Chemical Society