
Geology isn't a real science!
The Big Bang Theory Season 5, Episode 1

Why do we have a GEOLOGY book?
The Big Bang Theory Season 7, Episode 20

How did you figure out
that it was the GEOLOGY lab?
The Big Bang Theory Season 7, Episode 3

Bert works for the
GEOLOGY department.
The Big Bang Theory Season 7, Episode 13

Geology. Oh!
The Big Bang Theory Season 7, Episode 20