chemical science vs abundance

chemical science and abundance both are nouns.

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

chemical science (noun)	abundance (noun)
the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions	the property of a more than adequate quantity or supply
	(chemistry) the ratio of the total mass of an element in the earth's crust to the total mass of the earth's crust; expressed as a percentage or in parts per million
	(physics) the ratio of the number of atoms of a specific isotope of an element to the total number of isotopes present