Science Discripant Event 1

Egg in a bottle-an air pressure experiment

 Experiment :
1. Take the conical flask and place the boiled egg over its mouth.( the egg does not enter the conical flask).
2. Remove the egg and burn the piece of paper and gently insert inside the conical flask.
3. As soon as the fire is about to extinguish place the boiled egg on the mouth of the conical flask.

Observation:
It is observed that the flask instantly swallows the egg.


Reason:
1. When the piece of paper burns inside the flask, the fire heats the air inside, the air expands, becomes light and rises up and moves out of the flask creating low pressure inside the flask.( partial vaccum inside the flask)
2. The flask tries to draw the outside air inside, in the process the boiled egg is sucked inside the flask.

Principle:
1) Effect of atmospheric pressure.
2) Expansion and contraction of air.