This is not quite before life on earth, but it does deal with how life first came onto land, which I found quite interesting.

There are a couple of others by the same author.

Are you looking really far back, like the planets forming, and earth hanging out for a billion years or so before microbes began to form?

As far as "creation" goes, I've given DD6 the rough outline of the big bang, and she's also wrestled with the "why is there something instead of nothing" question.

She knows that some people have religious beliefs -- hard to avoid, since we know observant jews, muslims, christians, and new-agers. I've told her honestly why I don't hold any of those beliefs, but I've also taught her that those beliefs are personally important to a lot of people.