Where does the snow go?

This last weekend, Charlie asked Brett where the snow went that was on the driveway. Brett explained that we put it on the grass.
Charlie asked, "But where does it go when we want the grass to be cleaned off?"
Brett replied, "It melts and the grass drinks it up and the leftover runs off into the street?"
Charlie replied, "Daddy, how can it do that?! It doesn't have any toes!"