Today my 5 year old was playing with models of the Earth and the Moon on strings. He swung them around quickly and said, "This is what happened when the Moon broke out of orbit!" My husband asked him, "What do you think would happen if there were no moon?" My son thought for a moment then answered, "There would be no tides. They would have to get rid of that old werewolf story, and it would be darker at night."
I just loved that.