Egg in the bottle!

The Egg in the Bottle activity demonstrates air pressure differences using a wide-mouth bottle and a lit piece of camphor. Once the camphor is lit and placed inside the bottle, a hard-boiled egg is positioned over the bottle's mouth. As the camphor flame burns, it heats the air inside the bottle. When the flame goes out, the air cools and contracts, creating a pressure difference that pulls the egg into the bottle without any external push. 

Learning Objective:

To illustrate how changes in air pressure caused by temperature variations can create significant force, demonstrating the principles of atmospheric pressure and the behavior of gases.

Tags:
Air pressure, Temperature changes, atmospheric pressure, thermodynamics, pressure difference.