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Name: Neptune T.
Status: student
Age: 18
Location: N/A
Country: N/A
Date: 4/10/2003


Question:
I was wondering which would weigh more: A fully developed egg about to hatch? or One that has just been laid? I guess I am really asking whether or not the changes within an egg when its developing make a difference to its total mass.



Replies:
I would expect the egg is a closed system and should weigh the same throughout its development... with the developing embryo taking its weight gain from the nourishment within the egg.

Peter Faletra


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