The groups discussed contour lines and intervals, what it meant when lines were closer together or farther apart, and what the different colors on the map represent. In addition to reviewing these core topographical elements, students were asked about water sheds, where local water sheds reside, and how rain water should flow given certain geographical formations. We then ran the rain simulator so that students could test whether their hypotheses regarding water shed locations were true, and discussed the impact of unusable rain water that drains to the ocean, and scarcity of water in times of drought.
Discussion also included the formation of Crater Lake, an existing caldera, and how over time, rain water and snow fall can build up to form a lake.