1) Write a scene with a setting, NO CHARACTERS, and a change. The change must have real importance, dire consequences. Yes, you can.
The peninsula was a long strip of land, three parts water and one part sand. It was wide enough that even at the full moon's highest tide there was several hundred feet of dry land. The sun was just a silver of orange on the horizon, setting in the direction Humans called "west" and Treans called "uwar". The ocean shaded from dark grey to soft pink, depending on where one looked.
Night fell with the suddenness that the topics on any planet were famous for. To the east, or "tuor", the horizon took on it's own red glow, obscured by a rising haze. After a long moment a red light sprang into view, and all the water it touched boiled.