Chemistry studies matter, including its composition, structure, properties, and how it changes. Topics of study typically include atoms, chemical bonds and compounds, chemical reactions, and the way in which substances interact with each other. Chemists analyze and conduct experiments in the laboratory, perform quality and process control, and research and develop new products. Careers in both the lab and the office include chemical engineering, crystallography, industrial management,  quality control, toxicology, hazardous waste management,  water chemistry, and public health.