Why does glass break in a distinctively sharp way, unlike other materials?

Glass breaks sharply because of its molecular structure, which is rigid and brittle. Unlike metals, which have a more flexible atomic arrangement that allows them to bend or stretch, glass shatters when its structure is disrupted by stress or impact. The fracture spreads rapidly, creating sharp edges and shards. This characteristic makes glass both useful and dangerous, and it’s why safety glass is often treated to minimize the risk of sharp, dangerous pieces in the event of breakage