The coggle link below will take you to a layout of many things that we have learned this year in the Earth Science unit.
In this unit we had also learned the further away an island is from a hot spot means the older it is. How does the island move away from the hot spot? Well, the island moves away from the hot spot with the help of tectonic plates. As the plate tectonics move away from the hot spot, the island is moving with it. The further away the island is from the hot spot can then show us that this island is older.