Sketches include 'air', 'alchemy', 'alligator' 'ambidexterity', 'amoeba', 'antler', 'ant', 'archaeology', 'armor', and avalanche. 'Atom' and 'Attila the Hun' are the subjects of the songs.
Sketches include 'Bach, Johann Sebastian', 'bagpipes', 'ballet', 'bat', 'bee', 'Beethoven, Ludwig van', 'blood', 'bones (song)', 'boomerang', 'Brahms, Johannes', 'brain', 'brontosaurus'
Sketches include 'camel','carnivore', 'caveman (song)', 'census', 'chain reaction (song)', 'chlorophyll', 'Cleopatra', 'cockroach', and 'comet'
Sketches include 'Darwin, Charles', 'democracy', 'desert', 'diet (song)', 'dragonfly', 'dream', 'duck', and 'dust'
Sketches covering the letter E
Sketches covering the letter F
Sketches covering the letter G
Sketches covering the letter H
Sketches covering the letter I
Sketches covering the letter J
Sketches covering the letter K
Sketches covering the letter L
Sketches covering the letter M
Sketches covering the letter N
Sketches covering the letter O
Sketches covering the letter P
Sketches covering the letter Q
Sketches covering the letter R
Sketches covering the letter S
Sketches covering the letter T
Sketches covering the letters U and V
Sketches covering the letter W
Sketches covering the letters X, Y, and Z