Amorphous materials are solids that lack a well-defined crystalline structure. Unlike crystalline materials, which have a regular arrangement of atoms, amorphous materials have a disordered arrangement. This unique structure gives them distinct properties, such as increased flexibility and lower density, making them useful in various applications. Common examples of amorphous materials include glass and certain types of polymers. These materials can be found in everyday items, from windows to plastic containers. Their non-crystalline nature allows them to be molded into various shapes, making them versatile for industrial and consumer use.