Air cooling after snow melting

(1) The snow melting process is the melting process of snow, and melting is endothermic. When the snow melts, it absorbs heat from the air, which causes the air temperature to drop and makes it feel very cold.

(2) Wipe the blackboard with a wet cloth, and the blackboard is dry. The water turned into steam and ran away. It is water evaporation, and evaporation belongs to vaporization.

So the answer is: suck; evaporate