Question: What makes the snow fall? Answer : In our Snow category we have a nifty page called How Do Snowflakes Form? that helped me answer your question. Snowflakes are actually clumps of 2 to 200 separate ice crystals. These crystals are formed when bits of dirt get blown up into the atmosphere, and tiny pieces of ice form around them. If it's cold enough, these ice crystals will start to stick to each other. Once they're heavy enough, they fall to the Earth. If you look very closely at a snowflake, you'll find that it contains a beautiful geometric pattern. These patterns are a result of water freezing in a zero gravity environment, like a cloud!