Chemistry is the study of matter and energy and the changes that they undergo.
Everything that is known in the physical universe is made up of either matter or energy and the rest is just empty space. Chemistry is often referred to as the central science. All other branches of the physical sciences will touch upon the subject of chemistry and indeed, here at UH HILO all majors in the Natural Sciences Division except for Mathematics and Physics are required to take courses in Chemistry. Chemistry will play an important role in your lives in many ways. Many of the political decisions about the environment today have their basis in chemically oriented questions.