Science

Science (from the Latin scientia, 'knowledge'), in a historical sense, refers to any systematic knowledge or practice.[1] The modern use of the term refers to a system of acquiring knowledge based on the scientific method, as well as to the organized body of knowledge gained through such research.[2][3]
Fields of science are commonly classified along two major lines:
* Natural sciences, which study natural phenomena (including biological life), and * Social sciences, which study human behavior and societies.
These groupings are empirical sciences, which means the knowledge must be based on observable phenomena and capable of being experimented for its validity by other researchers working under the same conditions.[4]