economic science vs economics

economic science and economics both are nouns.

Word	Noun	Adjective	Verb	Adverb
economic science	Yes	No	No	No
economics	Yes	No	No	No

As nouns, economic science and economics are synonyms defined as:

economic science and economics: the branch of social science that deals with the production and distribution and consumption of goods and services and their management

Other synonyms of economic science include political economy.

economic science (noun)	economics (noun)
the branch of social science that deals with the production and distribution and consumption of goods and services and their management	the branch of social science that deals with the production and distribution and consumption of goods and services and their management