Keywords: water cycle, hydrology, precipitation, surface water, runoff, infiltrate, groundwater, aquifer, transpiration, evaporation, confluence, topographic map, contour lines, elevation, watershed; Lesson Plan Grade Level: sixth through eighth grade; Total Time Required for Lesson: one 1.5-hour session or two 45-minute sessions; Setting: open area outside the classroom
Keywords: topographic map, contour lines, elevation; Lesson Plan Grade Level: sixth through eighth grade; Total Time Required for Lesson: 40-minute class session; Setting: classroom