What does a chick need to be able to grow inside an egg?

That was the question for science exploration.

So we cracked an egg open and found:

"yolk" - food for the chick
"egg white" or "albumen" - water and nutrients
"white rope-like part" - "chalazas" - holds the egg in place

and we looked in the egg shell... do you see the bubble of air?

Is an experiment ever complete without touching?