🌿 Seasonal STEAM
How eggs breathe
Oxygen in, carbon dioxide out — through thousands of invisible pores in the shell.
Embryo
Air pocket
Shell (calcium carbonate)
Membrane
Yolk
O2 in
CO2 out
O2 in
CO2 out
Embryo
Yolk
Did you know?
A chicken egg has between 7,000 and 17,000 pores — the shell breathes constantly.