They say the sky will fill with dust in a bad way if we don’t do something soon. My teacher Mrs. Sandy says that if the meteor hits, it’ll put up enough dirt to block the sun, and everything will turn cold for a long, long while. When I came home and told Pa about this, he got angry. He called Mrs. Sandy a bad word, said she was teaching us nonsense. I told him the dinosaurs died because of dust in the sky. Pa said there weren’t no such thing as dinosaurs.