Scenes from a Early Morning Car Ride

Me: Did you guys know we're going to be going on a big adventure in June?
OlderKid: Yes.
Me: We're going to Canada, and we're going to look for icebergs.
OK: Yes, and then I will chase them, and they will fly away up into the sky.
Me: Hmm. I think you might be thinking of pigeons. Icebergs are made out of ice and snow.
OK: Oh.
Me: And they are really big, bigger than our house.
OK: Oh, and we cannot play with them. Because that is against the rules.
Me: Ummm, yes. It is against the rules of gravity.
OK: Oh.
YoungerKid: Yaahhhhhh!