Final answer:
Toughened glass, also known as tempered glass, is designed to break into small pieces rather than shattering into sharp fragments.
Step-by-step explanation:
Toughened glass, also known as tempered glass, is designed to break into small pieces rather than shattering into sharp fragments. This is achieved through a process of rapid heating and cooling during manufacturing. Tempered glass is used in car windshields, shower doors, and mobile phone screens, among other applications.