汞

工 = 二 + 丨 : Mnemonic symbol: a steel beam, since 工 looks like the cross section of a steel beam. In front of the engine ((e)ng1), Gitta Giraffe (gu) is doing some hard work: She's stacking a capacitor (二) on a dinosaur bone (丨) on a capacitor (二). She's not very successful, but then she gets the idea to use steel beams (工) as support.

水 = ㇇ + 亅 + 丿 + ㇏ : Sheldon Shrimp just climbed the Eiffel Tower. He's really thirsty, so he's glad to find a water fountain. After he quenches his thirst, he also finds a snack: A banana is swimming in the water. He never ate a banana before, so he tries a mix of different methods: Putting on a fake beak to pick on the banana, holding it with a finger and peeling it with a crowbar.