Snow are able to grow to hundreds of micrometers or millimeters in size at the expense of the water droplets by the Wegener–Bergeron–Findeisen process. The corresponding depletion of water vapor causes the ice crystals to grow at the droplets' expense. These large crystals are an efficient source of precipitation, since they fall through the atmosphere due to their mass, and may collide and stick together in clusters, or aggregates. These aggregates are snowflakes, and are usually the type of ice particle that falls to the ground. Although the ice is clear, scattering of light by the crystal facets and hollows/imperfections mean
Prehistoric Ice Man Cartman causes Kyle to fall into a cave and sends Stan to retrieve him; once in the cave, Stan and Kyle discover a man frozen in ice. The boys retrieve him and take him to Dr. Mephesto to be dissected. Stan and Kyle get into a fight about who really discovered the frozen man and what name they should give him. Dr. Mephesto thaws the ice covering the man and discovers that he is alive and was frozen for only 32 months (according to his clothing brand/style). Despite this, Mephisto and all adults treat him as a prehistoric man and