This resource is a great way to assess student knowledge about the major Earths Systems (atmosphere, biosphere, hydrosphere, and geosphere). Questions included in each organizer cover the greek root for each word, a description of the system, what each system is made up of, how they interact with each other, and finally why is each system important.Students use the graphic organizers to write an essay about the four major Earth Systems (essay sheets included).Makes for a great end-of-unit resear