Uru:
Nhazi ikuku
Ezigbo nguzogide ozone
Ọkụ na-enweghị ọkụ
Mgbochi mmanụ
Na-eguzogide ọgwụ acid na alkali
Imegide ịka nká
Ngwa:
A na-ejikarị ya eme ihe na injinịa kemịkalụ, ihe owuwu, ụgbọ ala, igwe, igwe elektrọnik, ụlọ ahịa ọgwụ, nke kwesịrị ekwesị maka ịkụ mgbanaka mgbaaka dị iche iche, ịchekwa, eriri roba, teepu akara na maka ịtọ ụlọ, wdg.