A water bath is a laboratory equipment used to maintain a stable temperature for various experiments or processes. It consists of a container filled with water, where samples or materials are placed in smaller containers, allowing for even heating or cooling. This method is commonly used in scientific research, cooking, and industrial applications. Water baths are particularly useful for tasks like heating solutions, incubating cultures, or melting substances. They provide a gentle and uniform heat source, reducing the risk of overheating or damaging sensitive materials. This technique is often employed in conjunction with devices like thermometers and stirrers for precise control.