Clarity of presentation, in both words and diagrams, should be your aim here. Answers don't have to be very long, just cover the essential points. Figures should be easy to interpret . Show on a diagram the relative positions of earth and sun when it is winter here, and when it is summer here. Make clear how this relates to the earth's position.
Wood floats in water.
Explain with a diagram in the Copernican scheme why Mars sometimes seems to be going backwards in its journey through the Zodiac. Bruno was burned at the stake in 1600 for suggesting there were infinite numbers of inhabited worlds. Suppose an astronaut is walking around on the moon in the middle of a vast flat plane. Explain the point Galileo is making here in terms of scaling. Here was the announcement from the Washington Post .