Chemistry
Chemistry - The branch of science concerned with the substances of which matter is composed, the investigation of their properties and reactions, and the use of such reactions to form new substances.
Oxford Dictionary
How can one explain the structure, properties and interactions of matter?
How do we measure matter in a chemical reaction?
How do we increase the efficiency of a chemical reaction?
How does matter change between phases?
What properties make gases unique?
How do mixtures relate to the phase changes of matter?
How do substances combine or change (react) to form new substances? How does one characterize and explain these reactions and make predictions about them?
What determines the type of chemical reaction that will occur between two substances?
What chemistry drives life processes?
What forces hold nuclei together and mediate nuclear processes?