To observe the revolutionary motion of Earth around the Sun, go star watching and make note of the stars directly above you. Sketch their pattern on a piece of paper and write down the date and time at which you make this observation. If these stars are not already a well-known constellation, make up a new constellation and give it a creative name. After a month has passed, look for this same constellation at the same time of night. Why isn’t it still directly above you? In what direction has your constellation shifted? Why?