migration vs chemical science

migration and chemical science both are nouns.

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

migration (noun)	chemical science (noun)
the movement of persons from one country or locality to another	the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions
the periodic passage of groups of animals (especially birds or fishes) from one region to another for feeding or breeding
(chemistry) the nonrandom movement of an atom or radical from one place to another within a molecule
a group of people migrating together (especially in some given time period)