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Explore the water cycle stages from evaporation to runoff, understand infiltration factors, and investigate groundwater dynamics. Learn about permeability, saturation, and runoff influences.
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Do Now Begin DO NOW Word Match Watercycling
Objective Describe the water cycle and what happens to precipitation.
The Water Cycle 1. Evaporation: Water from oceans, lakes and rivers turns to gas, enters the atmosphere. 2. Transpiration: Water released by plants and trees into the atmosphere. 3. Condensation:Water vapor cools to dewpoint and becomes liquid water.
What Happens to Precipitation? 4. Precipitation: Falling liquid or solid water from clouds. Rain, Snow, Sleet, Hail. 5. Runoff: Flows over land on the surface into streams, rivers, oceans... 6. Infiltration: Seeps into the soil.
AIM: What happens to water when it infiltrates the ground? Groundwater Quiz Brainpop
Fill in the handout: Vocabulary: Zone of Aeration- Water Table- Capillary Fringe-
Zone of Saturation- Bedrock- Water tables come to earth’s surface at: Water tables typically follow the topography of the land.
Investigating Groundwater animation Describe the Factors that affect runoff and infiltration of water? http://earthguide.ucsd.edu/earthguide/diagrams/groundwater/index.html
Factors that Affect Infiltration • Permeable • Unsaturated • Gentle (flat) slope of land • Vegetation • Land Use • Rate of precipitation less than Infiltration
Infiltration Permeability Permeability • Ability to let water through, into. [ Infiltration ]
Degree of Saturation Saturated – full of water; No infiltration; High runoff. Unsaturated- empty space; High infiltration; Low runoff.
Runoff • When soil is saturated water will run over surface; more runoff. Infiltration Saturation
Slope of the land • Flat Slope=High Infiltration= Low Runoff • Steep Slope=Low Infiltration=High Runoff Infiltration ____ Runoff ____ Slope _____
Slope (Gradient) • Steeper slope = less infiltration. • Slope ____ Infiltration ____ Infiltration Slope
Land use affects infiltration • Parking lots, paved roads and buildings prevent infiltration into the ground. • Farmland also reduces infiltration. • Less infiltration = More Runoff.
Vegetation affects infiltration • Vegetation increases, infiltration increases.
Vegetation • Vegetated-Plants, Trees, Grass absorb water – high infiltration. • Barren-No Vegetation, high runoff Infiltration Vegetation
Closure • Rainfall is most likely to infiltrate into soil that is • Draw the relationship between slope of the land and runoff • Flooding is likely to occur if the soil surface is Saturated, Paved, Impermeable, Steep Flat, unsaturated, vegetated, large particles. As Slope increases Runoff Increases-Direct
Homework Read Text pgs. 239-243 Answer Section assessment #1-5.