Genesis 1:6 And God said, Let there be a firmament in the midst of the waters, and let it divide the waters from the waters. [kjv]
1:7 And God made the firmament, and divided the waters which were under the firmament from the waters which were above the firmament: and it was so. [kjv]
1:8 And God called the firmament Heaven. And the evening and the morning were the second day. [kjv]
The "
waters" in the creation story in Genesis 1 fit well with the physical properties of a "
plasma", as the entropy (disorder) of the system of the created universe is decreased each day.