Providing plenty of calcium for the laying hens.
the shell shape makes it strong.
The calcium that makes the egg shell makes it hard.
eat them
Vinegar makes the egg wrinkly/takes off the shell and water makes and egg stronger
mostly calcium
vinegar
acetic acid
the shell of an egg
it is because egg shell contains calcium and this what makes it white
Yes. The vinegar helps dissolve the shell surface, giving way to the membrane underneath that makes the egg "bouncy."
This is an egg that can be in a shell and out of a shell.
the shell of an egg