geology vs earth science

geology and earth science both are nouns.

Word	Noun	Adjective	Verb	Adverb
geology	Yes	No	No	No
earth science	Yes	No	No	No

As nouns, earth science is a hypernym of geology; that is, earth science is a word with a broader meaning than geology:

geology: a science that deals with the history of the earth as recorded in rocks
earth science: any of the sciences that deal with the earth or its parts

geology (noun)	earth science (noun)
a science that deals with the history of the earth as recorded in rocks	any of the sciences that deal with the earth or its parts