knapplc wrote: The Balanced Man wrote:
You could light a fart
I could, but I was thinking of something a bit less vulgar. She's only four.
Ah I see.
Well, if you have a spare glass baby bottle, you could show her a vacuum.
If you find take an hardboiled egg (with the shell removed), stand the bottle up, toss a lit match in the bottle, and quickly put the egg on top of the bottle (the egg should normally be big enough to just sit on top of the opening), the heat should create a vacumm and suck the egg into the bottle, although the hole is too small.
Better google this one for exact instructions.