Geology. Oh!
The Big Bang Theory Season 7, Episode 20
Bert works for the
GEOLOGY department.
The Big Bang Theory Season 7, Episode 13
Hey, you want to hear
one of my GEOLOGY songs?
The Big Bang Theory Season 11, Episode 13
(STUTTERS)
You want me to read a GEOLOGY paper?
The Big Bang Theory Season 10, Episode 9
to the GEOLOGY lab
or the chemistry lab.
The Big Bang Theory Season 7, Episode 3