Liquid silica does not change to a crystalline solid when cooled

Unlike water, though, liquid silicon dioxide does not reform into a crystal solid when it cools.Instead, as the molecules lose energy,they are less and less able to move into an ordered position,and the result is what is called an amorphous solid.A solid material with the chaotic structure of a liquid,which allows the molecules to freely fill in any gaps.This makes the surface of glass uniform on a microscopic level,allowing light to strike it without being scattered in different directions.