Glass Is Neither a Liquid nor a Regular Solid
Glass is an 'amorphous solid' - it has the mechanical properties of a solid but the disordered molecular structure of a liquid, frozen in place during rapid cooling.
About this fact
Glass occupies a unique state of matter that has puzzled scientists for decades. Unlike regular crystalline solids where atoms are arranged in ordered, repeating patterns, glass has a disordered, random molecular structure more like a liquid. However, it behaves mechanically like a solid. This makes glass what scientists call an 'amorphous solid' or 'supercooled liquid.' When glass is formed, molten material is cooled so rapidly that the atoms don't have time to arrange themselves into the organized crystal structure they would prefer. Instead, they become 'frozen' in their random liquid-like arrangement. The common myth that glass 'flows' over time (supposedly explaining why old windows are thicker at the bottom) is false - glass doesn't flow at room temperature. The thickness variations in old windows are due to the manufacturing process, not molecular flow. At the glass transition temperature, glass does become moldable, but it doesn't gradually flow like honey.