Natural and social sciences are empirical sciences, meaning that the knowledge must be based on observable phenomena and must be capable of being verified by other researchers working under the same conditions.
Pantaraning ilmu alam wiadin ilmu sosial inggih punika ilmu empiris, santukan kawruhannyané madasar saking panyelehan empiris miwah sampun kauji validitasnyané olih sujana tiosan sané makarya ring kahanan sané pateh.