Does anyone remember that experiment back in school with the egg and the bottle?

Question

Do you remember the one where they would put the egg over the opening of the bottle (which was smaller than the egg) and the egg got sucked into the bottle somehow? Didn't it have something to do with boiling water?



Fourth grade was a long time ago.

Answer 1

If the air inside the bottle was heated first, by boiling water or even a piece of burning paer dropped inside, the air inside the bottle expands because of the heat. As it cools, the air takes up less space and whatever object is covering the opening of the bottle is sucked in by a vacuum effect.

Answer 2

Take a shelled, boiled egg. Drop a lit match into the bottle. Set the egg over the bottle opening. The match's heat causes pressure , as the bottle cools it causes a vacuum and sucks the egg into the bottle.

Answer 3

Not sure if this is what you did, but if you heat up the air in the bottle before putting the egg over the opening, when the air gets cold, its volume decreases and so is the pressure, that's why the egg gets sucked into the bottle. So maybe you put the bottle in boiling water to heat up the air?

Answer 4

I thought you put a small piece of paper in a bottle and dropped in a match and stuck the egg on top of the bottle then the carbon dioxide that builds up sucks the egg in?

Answer 5

Was it a hard boiled egg?

I could imagine doing this by filling the bottle with steam, and then condensing it, forming a weak vacuum inside the bottle, and pulling the egg inside. Sort of like an old-school steam engine condensation chamber.

Answer 6

i remember....they dropped a match into the bottle then the egg was sucked through the top of the bottle

Answer 7

When water vapor get colder, condensation makes the pressure drop in the bottle.
So external pressure comes to be much higher than the pressure in the bottle and it push the egg in!

Answer 8

no