Snow is precipitation in the form of ice crystals that form in the atmosphere under certain conditions. When the air at a certain height cools to a temperature below zero degrees Celsius, ice crystals begin to form in it. These crystals can combine with each other and form snowflakes. Snow can fall in the form of light fluffy flakes or in the form of large snow grains. It is an important source of water for many regions, and is also used for winter sports and entertainment.
