- Shape is a kind of physical property
- Breaking a bottle changes the shape of the bottle
- Hence, breaking a bottle changes the physical property of the bottle

- Breaking a bottle changes the physical property of the bottle
- If a thing's physical properties change then it has undergone a physical change
- Hence, the bottle undergoes a physical change

Hence, the bottle undergoes a physical change
As part of a study, a scientist observed a number of different molecular changes in matter. Which of the following observations provides evidence of a physical change?
- If a thing's physical properties change then it has undergone a physical change 
- Shape is a kind of physical property 
- Breaking a bottle changes the shape of the bottle