穀物

谷 = 人 + 八 + 口 : Mnemonic symbol: popcorn.

Gitta Giraffe (gu) conducts an experiment in the space station's living room (Ø3). She shows Neanderthal Man (人) three things: a mandarin (口), popcorn (谷), and an eight-ball (八), and records how much he likes to eat each of these. Neanderthal Man thinks that the eight-ball is a little crunchy.

物 = 勿 + 牛 : Willy Walrus (w) wants to become a physicist (物) and does research about dark matter (物) in the space station's bathroom (Ø4). His motivation is to become a super villain and rule the world. Just as he is about to have a breakthrough, a huge black ox (牛) flying with the help of bat wings (勿) hits Willy with an oxerang and takes away the dark matter, saving the world.