Chemistry is a term used in many different ways. However, in scientific terms it is the science of matter and the study of the changes that occur to matter. In its most basic sense it is the discovery, testing and study of the way that matter is created, composed, behaves, forms and reacts. Chemical reactions are therefore part of the process of chemistry, allowing one or more types of matter to be altered on a physical, molecular or elemental level.
There are several subcategories or specializations with the general field of chemistry. These include the inorganic elements, which are elements not composed of carbon but containing other elements such as salts and metals. Organic chemistry is based on matter that contains carbon, however there is also overlap between these two specific branches of chemistry.
Biochemistry is focused in on the action, reaction and components found within living systems, also known as biological organisms. Biochemistry is further divided into subcategories and specializations such as neurochemistry, which is the study of the chemical composition of the neurological system.
Other specializations within the field of chemistry include physical chemistry and analytical chemistry. These two branches of chemistry are some of the oldest, but they are also the areas of chemistry where amazing new discoveries are made that enhance the world around us.