Specials

1. Crash Course Chemistry: Outtakes #1

Sometimes words can be hard to say.

2013-04-01 • 11 min

2. Crash Course Chemistry: Outtakes #2

2013-09-30 • 11 min

3. Crash Course Chemistry: Outtakes #3

2013-12-02 • 11 min

4. Crash Course Chemistry: Outtakes #4

2014-01-20 • 11 min