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Similar to Unit 9, Lesson 3 - The Hydrosphere
Unit 9, Lesson 3 - The Hydrosphere
- 9. Water Cycle Steps 1.Evaporation – liquid to gas 2. Condensation – gas to liquid 3. Precipitation – water falls back to the ground either as rain, snow, or hail These three are the main processes of the water cycle (Review from Lesson 5.6)
- 10. Water Cycle Steps 4.Surface Runoff – much of the water that return to Earth as precipitation runs off the surface of the land, and flows down hill into streams, rivers, ponds, and lakes. Small streams flow into larger streams, then into rivers, and eventually the water flows into the ocean. Surface runoff is an important part of the water cycle because, through surface runoff, much of the water returns again to the oceans, where a great deal of evaporation occurs (Review from Lesson 5.6)
- 11. Water Cycle Steps 5.Infiltration – process where rain water soaks into the ground, through the soil and underlying rock layers, Some of this water ultimately returns to the surface at springs or in low spots downhill. Some of the water remains underground and is called groundwater. As the water infiltrates through the soil and rock layers, many of the impurities in the water are filtered out. This filtering process helps clean the water. (Review from Lesson 5.6)
- 12. Water Cycle Steps 6.Transpiration – process where plants remove water through its stomata in the leaves. This is the process of evaporation in plants (also called evapotranspiration). (Review from Lesson 5.6)