God creates the sky. The sky forms a barrier between water upon the surface and the moisture in the air. At this point earth would have an atmosphere. This creative work occurs in one day.
God creates dry land. Continents and islands are above the water. The large bodies of water are named “seas” and the ground is named “land.” God declares that all this is good.
Great numbers of birds and sea creatures. God blessed them and said, "Be fruitful and increase in number and fill the water in the seas, and let the birds increase on the earth." (Genesis 1:20-23)
The Sixth Day