The density changes.
It changes to gaseous state
When water has heat and energy it changes energy. The energy that it changes to is called thermal.
Chemically, nothing changes about water when it changes state. The physical state changes when water freezes into ice or evaporates into steam.
When water boils it changes from a liquid state to a gaseous state.
At 32 degrees Fahrenheit, water freezes and turns into solid ice. This is the temperature at which water changes from a liquid to a solid state.
The only changes of state in pure boiling water is from liquid to gas.
At 0 degrees Celsius, water freezes and turns into ice. This is the temperature at which water changes from a liquid to a solid state.
Changes the temperature of the substance
During evaporation, water changes from a liquid state to a gas state. This occurs when the water molecules gain enough energy to break free from the liquid and become vapor in the air.
Kinetic Energy is gained in the foward changes and lost in the reverse changes of state
These are changes in physical state, which are physical changes.
1st it "changes" into water, and if heated long enough, at high enough temperature, it "changes" to steam, then, it eventually evaporates.