chemical science vs supernatant

chemical science and supernatant both are nouns.

Word	Noun	Adjective	Verb	Adverb
chemical science	Yes	No	No	No
supernatant	Yes	Yes	No	No

chemical science (noun)	supernatant (noun)
the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions	the clear liquid that lies above a sediment or precipitate

chemical science (adjective)	supernatant (adjective)
	of a liquid; floating on the surface above a sediment or precipitate