A lesson looking at what makes our planet habitable. Based loosely on the geog.1 textbook. Lesson includes- a video with gap fill exercise an activity based upon the premise of the imminent destruction of earth by a meteorite. Students have to rank 5 potential new planets in order of how habitable they are for humanity to resettle on based upon factors such as how close they are to a star, their size, availability of water and atmospheric content. A template for a letter to NASA outlining the student’s top choice of planet and reasons why it is the best option for humans to resettle on. Fully resourced.