Prior to this unit, students were taught Earth’s four different spheres: the hydrosphere, the geosphere, the atmosphere and the biosphere. In this unit, the focus will be on how these four spheres interact. Students will learn how the hydrosphere and atmosphere interact to create a hurricane. Next, they will make observations of how a hurricane can affect the geosphere and biosphere when it hits land. Students will then go on a nature walk around campus where they will record any spheres they observe interacting. Students will end the unit by creating models to show the spheres interacting using a phenomenon of their choice.