- Water is in the solid state , called ice
- Water turns into ice
- Water is in the liquid state , called liquid water
- Therefore, water changes from a liquid to a solid

- Water changes from a liquid to a solid
- Freezing means matter / a substance changes from a liquid into a solid by decreasing heat energy
- Therefore, the water freezes

- The water freezes
- Freezing is a kind of phase change
- Therefore, water undergoes a phase change

- Water undergoes a phase change
- Phase changes change the arrangement of molecules in a substance / in a sample
- Hence, the arrangement of molecules in water is changed by a phase change

So, the arrangement of molecules in water is changed by a phase change
Question
As a sample of water turns to ice,

Context
- Water is in the solid state , called ice 
- Water turns into ice 
- Freezing means matter / a substance changes from a liquid into a solid by decreasing heat energy 
- Phase changes change the arrangement of molecules in a substance / in a sample 
- Water is in the liquid state , called liquid water 
- Freezing is a kind of phase change