Glass is a hard material that can be made in many shapes. It is usually transparent, but it can also be made in colours. Glass is made of sand that is heated until it is liquid. When it is liquid, it is shaped and left to cool.Glass today is such a versatile surface that it can be used for virtually any function. It can be molded, tinted, toughened, frosted, and used as floors, roofs, glass walls, mirrors, doors, kitchen splash backs and much more.