Science is a way of knowing about the world. It includes making observations, developing hypotheses, testing the hypotheses in controlled experiments, and drawing conclusions from the data.
Chemistry and physics are ways of knowing about the composition, structure, function and properties of substances and the transformations they undergo.
Chemists work to understand and interpret patterns in the behavior of molecules and to make those patterns usable to others. Their creative work in this century has enabled us to transform the way human life is conducted on this planet. They play a large role in solving the everyday problems of health, comfort and welfare.