"What We Learned" joke

The following are all quotes from an 11 year old student's science exams:
Water is composed of two gins, Oxygin and Hydrogin. Oxygin is pure gin. Hydrogin is gin and water.
When you breathe, you inspire. When you do not breathe, you expire.
H20 is hot water, and CO2 is cold water.
To collect fumes of sulphur, hold down a deacon over a flame in a test tube.
Respiration is composed of two acts, first inspiration, and then expectoration.
The body consists of three parts - the brainium, the borax and the abominable cavity. The brainium contains the brain, the borax contains the heart and lungs, and the abominable cavity contains the bowels, of which there are five - a, e, i, o and u.
Momentum: What you give a person when they are going away.
Rhubarb: a kind of celery gone bloodshot.
Vacuum: A large, empty space where the pope lives.
To keep milk from turning sour: Keep it in the cow.
A fossil is an extinct animal. The older it is, the more extinct it is.
Germinate: To become a naturalized German.
Litter: A nest of young puppies.