Glassmaking is the process of creating glass objects by heating a mixture of silica sand, soda ash, and limestone until it melts. This molten glass can be shaped into various forms using molds or by blowing, casting, or pressing techniques. Once shaped, the glass is cooled slowly to prevent cracking. After cooling, glass can be further treated through processes like annealing, which strengthens it, or decorating with colors and patterns. Different types of glass, such as float glass for windows or art glass for decorative items, are produced based on the intended use and desired properties.