chemical science vs synthetic

chemical science and synthetic both are nouns.

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

chemical science (noun)	synthetic (noun)
the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions	a compound made artificially by chemical reactions

chemical science (adjective)	synthetic (adjective)
	of a proposition whose truth value is determined by observation or facts
	systematic combining of root and modifying elements into single words
	involving or of the nature of synthesis (combining separate elements to form a coherent whole) as opposed to analysis
	not of natural origin; prepared or made artificially
	not genuine or natural
	artificial as if portrayed in a film