What happens when something is cooled to below zero degrees celcius

Question: What happens when something is cooled to below zero degrees celcius
- Keywords:
  cool,
  temperature
Asked by abpb266 to Patricia, Kamal, George, Charles, Beatrice on 16 Jan 2017.
- Kamal Bhattacharya answered on 16 Jan 2017:
  
  Depends on what it is that you’re cooling. Any ideas? Cause different substances have different effects when cooled to the lowest of temperatures close to absolute zero.