Snow is a solid precipitation of ice. Depending on the moisture content and temperature in the atmosphere, it can produce different crystalline such as needles, columns, plates, dendrites, and stars. The crystals can adhere to each other to form larger snow crystals. When these crystals fall to the ground is called snow. Graupel is one of the types of solid precipitation, which usually occurs at around zero degrees Celsius near the ground. When the cloud droplets in the atmosphere freeze rapidly, there are other cloud droplets attached to it, forming a hexagonal white opaque ice particle with a spherical or approximately spherical shape, about 5 mm in diameter, and soft and easily broken. It will bounce on hard surfaces.