4x02: Discoveries
3x12: Combustion
3x10: Cleve Crudgington
3x07: Constellations
3x05: Cat's Eyes
3x03: Common Knowledge
3x02: Cummingtonite
3x01: Campanology
2x11: B Major, B Minor, B Flat
2x10: Bills, Bens, Buildings
2x05: Bears, Bulbs, Bamboo
