A physical change is when a substance undergoes a process whereby its physical features change but its chemical features stay the same.
A chemical change is when an object undergoes a process whereby its chemical composition changes.
The water leaving as steam has undergone a physical change (evaporation) from a liquid state to a gaseous one, but no chemical change has occurred because it is still H2O. By definition, any change in the state of matter is a physical change.
This involves a change of state of the water. Before, during, and after the boiling, it remains water. So, since the substance doesn't change its character, the boiling of water is a physical change.
Boiling water is physical change.
Boiling of water is a physical process, a change of phase.
Boiling and evaporation are physical changes.
Physical
This involves a change of state of the water. Before, during, and after the boiling, it remains water. So, since the substance doesn't change its character, the boiling of water is a physical change.
Boiling is a physical change.
Boiling is a physical phenomenon, a change of phase.
Boiling water is physical change.
Boiling water is a physical change because it does not change the chemical composition of the water.
vaporization
Boiling of water is a physical process, a change of phase.
Boiling and evaporation are physical changes.
When water boils, it is a physical change.
It is a physical change.
Boiling is a physical change.
Physical