[City of Avalon]
Snow, an accumulation of packed ice crystals, and the condition of the snowpack determines a variety of qualities, such as color, temperature, and water equivalent. Ice, water in its frozen, solid form. Ice often forms on lakes, rivers and the ocean in cold weather. It can be very thick or very thin. It occurs as frost, snow, sleet and hail. Frost, a water vapor, or water in gas form, that becomes solid. Frost usually forms on objects like vehicles, windows, and plants that are outside in air that is saturated, or filled, with moisture. Tundra, an ecosystems are treeless regions found in the Arctic and cold area of the world, where the climate is cold and windy, and rainfall is scant.