Frozen water, commonly known as ice, occurs when water reaches a temperature of 0 degrees Celsius (32 degrees Fahrenheit) or lower. At this temperature, the molecules in water slow down and arrange themselves into a solid structure, forming ice crystals. This process is called freezing and can happen naturally in cold environments or artificially in freezers. Ice can be found in various forms, such as snow, hail, and glaciers. It plays a crucial role in Earth's climate and ecosystems, influencing weather patterns and providing habitats for species like polar bears and penguins. Additionally, ice is used in everyday life for cooling drinks and preserving food.