Learners construct a simulated model of the ocean floor in a shoe box. They determine that the floor of the ocean is composed of hills, plains, ridges, trenches, and sea mounts. They draw out a plan for their ocean floor which includes abyssal plains and hills, an atoll, a bay, continental shelf and slope, guyot, island, rift valley, sea mount, trench, mid-ocean range, submarine canyon, sub-duction zone.