Snow Snow Snow refers to forms of ice crystals that precipitate from the atmosphere (usually from clouds) and undergo changes on the Earth's surface. It pertains to frozen crystalline water throughout its life cycle, starting when, under suitable conditions, the ice crystals form in the atmosphere, increase to millimeter size, precipitate and accumulate on surfaces, then metamorphose in place, and ultimately melt, slide or sublimate away. Snowstorms organize and develop by feeding on sources of atmospheric moisture and cold air. Snowflakes nucleate around particles in the atmosphere by attracting supercooled water droplets, which freeze in hexagonal-shaped crystals. Snowflakes take on a
Ice Warrior qualities of the monsters as well as to suggest that the Martian atmosphere is composed differently from that of Earth. The hissing voice is believed to have been developed by Bresslaw. Ice Warriors also have sonic weaponry built into their wrists. "The Seeds of Death" introduces an officer caste often referred to as Ice Lords. They are less armoured than their soldier counterparts and lack their mounted sonic weaponry. Common to both the Ice Warriors and Ice Lords are claw-like gloves. For the return of the characters in 2013's "Cold War", these became three-fingered gloves, similar to another Doctor Who