Question

Give reason why glass is considered as a super cooled liquid

Answer 1

Because it have the property of flow over time

Answer 2

Glass is a amorphous solid so as all amorphous solids have a tendency to flow, though very slowly. Hence, glass is considered as a super cooled liquid. That is why we can see in the old buildings and monuments the glasswindows and doors become slightly thicker at the bottom than at the top with the time.