The study of matter is called chemistry. It focuses on the composition, structure, properties, and changes of matter, including how substances interact with each other. Chemistry encompasses various subfields, such as organic, inorganic, physical, analytical, and biochemistry, each exploring different aspects of matter and its transformations. This discipline is crucial for advancements in various industries, including pharmaceuticals, energy, and materials science. Understanding the principles of chemistry allows scientists to develop new materials, enhance reactions, and contribute to innovations that improve quality of life.