Final answer:
Bettye Washington Greene is a notable figure in the field of chemistry, specializing in the study of colloidal chemistry within the broader physical science category.
Step-by-step explanation:
Bettye Washington Greene, a pioneering chemist, did significant work in the field of physical science. Specifically, she studied an area within chemistry, focusing on colloidal chemistry as it relates to the development of latex and other polymers. Her work had substantial impacts on the production of plastics and latex paints. The field of science has many branches, and among them are chemistry, geology, physics, biology, and astronomy, each studying different aspects of the natural universe. Chemistry, in particular, deals with the composition, structure, properties, and change of matter.