Skating on ice is possible because A) the surface of ice is smoothB) ice is coldC) the pressure on the ice due to skate melts the ice by lowering its melting point forming a thin film of waterD) the pressure on the ice due to skate raises its melting point
Ice skating works because metal skate blades glide with very little friction over a thin layer of water on the ice surface. At one time, scientists thought skaters created the water layer by melting the surface layers of ice through the pressure of their body weight.
