the kinetic energy of water molecules are increasing
liquid_water has more_energy_than_ice liquid_water has more_energy_than_water_ice when_water is heated_becomes_water_vapor. water_energy is not mechanical_energy. steam has not more_energy_than_liquid_water ever_increasing is increasing. steam has more_energy_than_liquid_water water_energy is mechanical_energy. increase_in_mass is increase_event. water is molecule.