polystyrene

Polystyrene is a type of plastic made from a chemical called styrene, which is derived from petroleum. It appears as a rigid, lightweight, and translucent material commonly used in packaging, insulation, and disposable items like cups and containers. Polystyrene can be produced in hard forms or expanded into foam, known as Styrofoam, which provides excellent insulation and cushioning. It is valued for its durability, ease of manufacturing, and cost-effectiveness, though it is also associated with environmental concerns due to its slow decomposition and challenges in recycling.