Yes, there is air inside of it
Yes, definitely
it should not be floating. fresh eggs done float. expired ones do.
No
Yes. hard-boiled egg
You get a hard boiled egg, and put a hole in it.
Frozen, hard boiled is like soft rubber
hard boiled egg
Either the egg wasn't boiled long enough, or the egg is rotten. Or the egg is too fresh.
No. When an egg is boiled anything living in or on it is killed.
An egg that isn't hard boiled would generally break if you bounced it. It's more than likely to break if it is hard boiled.
a hard boiled egg.
I would use a regular raw egg it has a lower density oh and it floats but its your choice I dont think it matters!!!!!!!!!!!!!!!!!!