Get low-prep, self-checking practice with these Water Sources (Hydrosphere) vocabulary riddles + scavenger hunt, guided notes, flashcards, and a Google Forms™ quiz for grades 6–8. Say goodbye to dull drills—and hello to confident, independent learners. This vocabulary + stations set helps students master key hydrosphere/water-sources terms (ocean, freshwater, groundwater, aquifer, estuary, reservoir, river basin, brackish water, glacier, wetlands, spring, stream, lake, desalination, atmos