Why Do Eggs Float?

Answer

Some eggs float in water because of a large air cell that forms when the egg is being laid. As an egg ages, the porous shell allows the air cell to expand, which acts as a buoyancy aid hence the egg floats.
Q&A Related to "Why Do Eggs Float"
because when eggs are rotten they float.
http://wiki.answers.com/Q/Why_do_some_eggs_float_a...
More than a century ago, the basic gas laws were derived. These laws relate pressure, mass and volume. The Ideal Gas Law reads, pV = nRT. This law says pressure times volume of a
http://www.ehow.com/about_5459319_do-helium-filled...
Salt water is denser than pure water.
http://wiki.answers.com/Q/Why_does_an_egg_sink_in_...
Chickens are connected to their environment and are sensitive to changes. A new coop, a new nesting box, lack of food and water, and frequent visits by predators can cause a hen stress
http://www.ehow.com/about_6605810_do-hens-quit-lay...
2 Additional Answers
Generally, fresh chicken eggs will lie on the bottom of the bowl of water and not float. If you have an egg that float it is starting to rot and the gas it is producing inside the shell makes it float. You can find more information here: http://whatscookingamerica.net/Eggs/EggsFloat.htm
Eggs float in fresh cold water when they are old because the shell is porous and after time the air pocket in the egg gets bigger and absorbs more air.
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