Last night I overheard a snippet of a conversation between JM (age 5) and David (age 4) I heard the words "whale" and "wood" and little else so I went into their room and asked
"Are you talking about wooden whales?"
JM responded with "No, not wooden whales. Whales aren't made out of wood."
"Oh, well what are whales made out of?"
"You know, the usual stuff."
"What's the usual stuff?"
Of course, silly me - whales aren't made out of wood, they're made out of atoms. You can guess who (thankfully) *doesn't* teach science around here!