Conner Quiring
The question I am trying to solve for my science project is: Does heat drop the air pressure in a bottle enough to push an egg through the narrow opening?
My hypothesis is: Dropping pressure will not be enough to push the egg through the narrow opening.
The variable is: The air pressure in the bottle when it is cold and when it is hot.
The constants are: The egg and the bottle.
In order to achieve valid results, I will test each of the variables 2 times.
Supplies that I will need: Two eggs, a bottle with a narrow opening, and matches (paper).
My procedure is: Step one, find a bottle with a medium sized mouth. Step two, hard boil the eggs. Step three, place peeled egg on the narrow opening of the bottle. Step four, check if egg falls to the bottom of the bottle. Step five, remove egg put lit matches in the container. Step six, place egg back on opening. Step seven, check to see if the egg is pushed through the container. Step eight was the bottle and then us it again, two to three more times.
My results: When there is no flame in the bottle the egg rest on top of the opening, because the air pressure pushing down on the egg and pushing up on the egg are the same. The matches didn’t work so I burned paper. Once I got a flame in the bottle it did suck the air in the bottle and the air pressure on top of the egg pushed it into the narrow opening of the bottle. Once the flames took some of the air out of the bottle, the air pressure on top was strong enough to push the egg into the bottle.
My conclusion: My hypothesis was wrong because, the air pressure was enough to push the egg into the bottle. The heat of flame sucks the air around it so there is little air inside of the bottle. The air pressure on top of the egg is stronger than the air pressure in the bottle. So it pushes the egg into the bottle.
Bibliography: http://www.all-science-fair-projects.com
The egg without fire, sits on the mouth of the bottle
The egg being pushed down by the air pressure, and with the fire inside the bottle.
The egg inside the bottle after it was been pushed by the air pressure.
