science lab vs laboratory

science lab and laboratory both are nouns.

Word	Noun	Adjective	Verb	Adverb
science lab	Yes	No	No	No
laboratory	Yes	No	No	No

As nouns, science lab and laboratory are synonyms defined as:

science lab and laboratory: a workplace for the conduct of scientific research

Other synonyms of science lab include lab, research lab, research laboratory, science laboratory.

science lab (noun)	laboratory (noun)
a workplace for the conduct of scientific research	a workplace for the conduct of scientific research
	a region resembling a laboratory inasmuch as it offers opportunities for observation and practice and experimentation