Scientific Knowledge Is In Hot Water

(A 10th-year high school class is visiting my library. I overhear the following conversation:)

Student #1: “…Well, submarines can’t stay down forever. They need to come up for air.”

Student #2: “Nah, they just have to boil some water.”

Student #1: “What?”

Student #2: “Well when you boil water, it turns into air, so they just take water from the ocean and boil it to get fresh air.”

Student #1: “Oh, my f***** God, [Student #2]. Are you serious?”

Student #2: “What?”

(I didn’t hear the rest. I had to walk away quickly to stop myself from laughing. These students were around 15 years old!)