conscientious vs conscience

conscientious is not a noun while conscience is a noun.

Word	Noun	Adjective	Verb	Adverb
conscientious	No	Yes	No	No
conscience	Yes	No	No	No

conscientious (noun)	conscience (noun)
	conformity to one's own sense of right conduct
	a feeling of shame when you do something immoral
	motivation deriving logically from ethical or moral principles that govern a person's thoughts and actions

conscientious (adjective)	conscience (adjective)
guided by or in accordance with conscience or sense of right and wrong
characterized by extreme care and great effort