How to make an egg submerge?
Eggs float because of trapped air inside the shell. As the egg ages it becomes more buoyant since liquids inside the shell evaporate and are replaced by air. If you have an egg that is really floating a lot than be careful. That egg could be rotten and breaking it open may be very smelly. If you wish to sink the egg, then make a small hole in the shell and allow water to get into the egg, replacing the air.
