<classify> Ba shi kaɗai bane dai, yin gwaji, kuma gwaji wata hanya ce ta jarrabawa da ake amfani da ita domin kawar da ɗaya ko fiye daga cikin harsashe da za a samu. yin tambayoyi, da fadin raayi su ma suna yin jagora ga binciken kimiyya.  <topic>: ScienceNature of Science 