This is our second science experiment that we did this Friday. We took a hard boiled egg, peeled, and a glass bottle, and matches. The question they came up with was to see if they could fit the egg into the glass jar. This took some coaching because they didn't have that back ground about knowledge of pressure with the heat of the matches so I told them information about heat and pressure and then it hit them about getting the egg into the bottle even though it doesn't look like it will fit! Here are our supplies. (Sorry for the blurry picture, student photog!)
Then, we begin! Light the matches and quickly stick the egg on an watch!
And we got it to suck down in the bottle a little but not all the way so they wanted to try it again. They decided I didn't stick the egg on fast enough because I was putting the fire inside so they decided I needed a helper to stick the egg on top once I dropped the matches inside.
They were right! It sucked it further in there. It was sucking it so hard it didn't suck it all the way down it sucked the bottom of the egg right off!!