I think that most all around here can agree that somewhere along the line, life on Earth originated from non-life. Now this may have been through God's creation, or through non-Godly naturalistic processes, or perhaps some combination of the two. Or life may have originated off-Earth via one of the above, and been imported to Earth.
Per the origin of life debate, I refer you to the topics of the
Origin of Life forum.
Anyway, somehow life originated. Only after that does evolution kick in. The theory of evolution, as to be discussed in the "Biologic Evolution" forum, stands independent of how life originated.
The experiment you are probably referring to is the Miller-Urey experiment. A couple of topics relevant to it are the following, although there could well be other better topics at the "Origin of Life" forum:
Question about Miller experiment
Stanley Miller Experiment - Was It "Rigged"?
Moose
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