溶質

溶 = 容 + 氵 : Rachel Rhinoceros (ru) is making a smoothie in the engine's kitchen ((e)ng2). She put her food in a food container (容) and pours a bottle of water (氵) over it. Because her food is soluble (溶) the mix turns into a slurry.

质 = ⺁ + 十 + 贝 : James II of England (zh) captured a crab (贝) and keeps it as a hostage (质) In the space station's bathroom (Ø4). James II of England wants to find out more about the nature (质) of the banana tree (⺁), so all the crab gets to eat is the banana trees. Secretly the crab set up a small cross (十) to which it prays everyday for its release.