These are the generations of the heavens and the earth when they were created...
Genesis 2:4

It doesn't say "This is how heaven and earth were created", but "These are the generations (toledot) of the heavens and the earth." The creation of heaven and earth is described in exactly the same form as numerous genealogies. Heaven and earth and all they contain are portrayed as if they are God's own children.

Interestingly, Matthew 1 describes the genealogy of Yeshua as "This is the genesis..."