When ice is heated due to the pressure and heat, ice changes into water and the point when it changes to water it means it has changed to liquid and when the water is heated it evaporates and changes to gas.freezing point of water is 0 degrees and  boiling point is 100 degrees

Watch few cubes of ice melt in your drink glass on a hot day. To the naked eye, the transition from ice to water may seem like something of a nonevent. However, on a molecular level, it signifies a flurry of activity and rapid change.