Petri dish glass, Nairobi Industrial Area

A Petri dish is a shallow, flat, cylindrical, lidded container typically made of glass or clear plastic. It is used in laboratory settings for the cultivation and observation of microorganisms, cells, or small organisms under controlled conditions. The dish provides a sterile environment that allows scientists and researchers to study the growth, behavior, and interactions of these biological entities, making it a fundamental tool in microbiology, cell biology, and other related fields.