氧

氧 = 气 + 羊 : Maud Younger (y) gave the sheep (羊) a balloon (气) inside of the anglepod (ang3), but unfortunately it doesn't float because it is filled with oxygen (氧).

Mnemonic symbol: a balloon. The Queen of Hearts is disappointed by her balloons. She expected them to float upwards, but in the space station's bathroom, They float randomly in all directions.

羊 = 丫 + 三 : Maud Younger is looking for gender equality just inside the anglepod's kitchen—and a dowsing rod is her tool of choice. A sheep sees this and imitates her, using a Cartesian coordinate system as a dowsing rod substitute.