|
|
Although it is not an 'all hands in' type of experiment, I do remember a local scientist coming to my 4th grade class and doing the egg in a bottle demonstration for us. He took a 2L bottle, lit some matches and threw them into the bottle, and stuck a pre-boiled egg on top. The heat from the matches changes the pressure in the bottle, thus creating a vaccuum and sucking the egg in! I remember absolutely loving watching this, being fully engaged, and ready to learn more. He even did pre-demo questions asking who thought he could fit the egg into the bottle without breaking it.
While this is a lengthy response, I figured it could be a starting point for you! A quick google search will bring up many results for this, or you can even try the similar demo that I have found on this site, but instead of an egg the teacher used a balloon. Very fun and exciting for most kids!
Good luck!
-Jessica Barnett
|