Block 1: Unit 3: Hydrosphere - review Earth's spheres (geosphere, hydrosphere, atmosphere, biosphere) and how they interact; element abundance in each sphere; freshwater and saltwater, both their physical and chemical properties; review the water cycle; discuss groundwater vs surface water
Block 3: Unit 3: Hydrosphere - review Earth's spheres (geosphere, hydrosphere, atmosphere, biosphere) and how they interact; element abundance in each sphere; freshwater and saltwater, both their physical and chemical properties; review the water cycle; discuss groundwater vs surface water
Block 3: Unit 3: Hydrosphere - review Earth's spheres (geosphere, hydrosphere, atmosphere, biosphere) and how they interact; element abundance in each sphere; freshwater and saltwater, both their physical and chemical properties; review the water cycle; discuss groundwater vs surface water