大地测量学

大 = 一 + 人 : The big (大), huge (大) robot (mnemonic symbol for 大) is working out in the ashram's bathroom (a4). He's lifting a flute (一) to which Don Quixote (d) and Neanderthal man (人) are clinging.

地 = 也 + 土 : Dorothy Gale (di) operates the excavator (也) in the space station's bathroom (Ø4) to move a pile of dirt (土) out of the way.

测 = 则 + 氵 : Wu Zetian (则) and the King of Chu (c) think that they are a good match and want to marry, but before they do, they interview (测) each other in the elevator's bathroom (e4). They spin a water bottle (氵) and whoever it is pointing at has to fill out the other one's survey (测).

量 = 旦 + 里 : Li Qingzhao uses a measuring cup for a recipe in the anglepod's kitchen. Unfortunately she made a terrible mistake: instead of measuring cups of sunflowers, she throws sunflowers and cups together into a measuring cup.

学 = 小 + 冖 + 子 : Xu Xian wants to study scienceology and learn more about daisies. Just inside the elevator's kitchen, he put some daisies into a prize cup and covered them with a cooking top. He wants to study the growth rate of the daisies depending on the pH of the water in the prize cup.