It depends on the class. For something like earth science I am inclined to say no, because my class had absolutely no lab time at all.
I think bio and chem are definitely lab sciences, physics it varies. It's literally whether you spend a decent amount of time in a lab setting and not just lectures. Our physics class was a conceptual one so we did almost no lab work, so it didn't count as a lab science. Ask your GC/school.
More lab science = good.