I prefer to think that God created gravity, and that's what made the lake flat.
Same with evolution.
There's a huge problem with your comparison. Creationists believe that man is in a fallen state, in need of a higher power to redeem us. Evolutionists believe that we indeed are evolving into higher, more intelligent life forms. Yes, God did create gravity as one of the organizing forces of nature. Surely you know that evolution is OPPOSED to several natural laws. Going from order to disorder is the nature of things. Evolution has it backwards. If you believe that God created laws of nature, like gravity, to govern the universe, then you have a big problem with the theory of evolution.
So God did it? :-)
God created the second law of thermodynamics, too.