A Baby Might Consider The Uterus A Cell, Of Sorts

(I am volunteering at a science festival, doing science activities with children. We have an activity where it is relevant to mention that a baby is made from an egg and a sperm. The activity is specifically designed so that we never have to mention how these two get together in the first place, but we do name the two cells. I am supervising a girl of around nine, and a few other kids.)

Me: “The baby is made from two special cells from the mum and the dad. Does anyone know what the special cell from the mum is called?”

Nine-Year-Old: *raises hand excitedly, then calls out at the top of her voice* “Vagina!”

(I carefully avoid making eye contact with any of the other adults at the stand, knowing that I will not be able to contain myself if I do.)

Me: *very calmly* “You’re very close. That’s actually where the baby comes out of the mum.”