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Water Cycle

Water Cycle. The Hydrosphere. Links the Atmosphere – water vapor Biosphere – living things Lithosphere – rivers, lakes, oceans, ground water Cryosphere – ice, snow, and permafrost. What is the water cycle?.

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Water Cycle

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  1. Water Cycle

  2. The Hydrosphere Links the • Atmosphere – water vapor • Biosphere – living things • Lithosphere – rivers, lakes, oceans, ground water • Cryosphere – ice, snow, and permafrost

  3. What is the water cycle? • The continuous movement of water on Earth’s surface from atmosphere, to land, oceans, and back • Water covers 2/3 of earth surface

  4. Stages of the Water Cycle • Evapotranspiration – all the liquid water that is turned into water vapor by: • Evaporation from the soil, oceans, and other surfaces • Transpiration from organisms

  5. Condensation – the change of state from a gas (water vapor) into a liquid (water) • Formation of clouds and dewdrops 

  6. Precipitation – any form of water that falls to the Earth • Rain, snow, sleet, hail • On land becomes runoff or groundwater

  7. Water Budget • Does Precipitation = evapotranspiration? • Influenced by • Temperature • Wind • Vegetation • Rainfall • Season

  8. Water Conservation • Fresh water is limited • We must use it wisely • We must protect it from pollution • We can find new ways to obtain fresh water • Ex. Desalination - process of removing salt from ocean water; expensive

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