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The Water Cycle

Discover the remarkable process of the water cycle, which ensures a continuous supply of fresh water for all life on Earth. Explore the stages of evaporation, condensation, precipitation, and runoff, and learn about the vital role of storage in ice, reservoirs, and groundwater.

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The Water Cycle

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  1. The Water Cycle

  2. Hydrosphere • 97% of the Earth’s water is Salt Water • 2.55% of the Earth’s water is frozen in Ice Caps and Glaciers • That leaves only 0.45% of fresh water available for all life on Earth

  3. Why don’t we run out? • Water is constantly being renewed and reused through the Hydrologic cycle. Or • The Water Cycle.

  4. Stage 1 of Water Cycle… • Water can return to the air by evaporation from bodies of water or transpiration from plants. • Evaporation and Transpiration are usually referred to as Evapotranspiration.

  5. As the water vapor floats up in the atmosphere it will eventually turn back into water droplets • Water vapor => liquid water is condensation • Condensation in the air forms clouds.

  6. As the water drops or ice crystals get too large they fall back to Earth. • Precipitation

  7. As the precipitation falls back to Earth it do 1 of the following 4: • Runoff (flood) • Infiltrate (get absorbed into the ground) • Be stored as Ice or Snow • Be stored in reservoirs (natural and man-made)

  8. Runoff • Rain that hits the surface and can not go into the ground will flow over the surface into streams, lakes, etc.

  9. Infiltrate • Water that soaks into the soil and becomes part of the ground water system is said to infiltrate. • Infiltration depends on soil type, steepness of slope, and vegetation.

  10. Ground Water • This water can be: -Pumped to the surface -Stored in the ground -Reach the surface through exposed rock called springs

  11. Got Bottled Water?

  12. Storage as Ice or Snow • Water that precipitates as snow in cold areas will remain frozen until it is warmed.

  13. Storage in Reservoirs • Some runoff will be captured in Lakes or reservoirs and can be used on demand.

  14. http://science360.gov/obj/video/e540c490-739f-47d4-b03e-f52e04918fcb/sustainability-water-water-cyclehttp://science360.gov/obj/video/e540c490-739f-47d4-b03e-f52e04918fcb/sustainability-water-water-cycle

  15. What did you learn? ($10 and 10pts) • Cut out the stages of the water cycle. • Place them into the correct places within the diagram. • Cut out the descriptions of the stages. • Place them into their correct places according to the matching stage. • Paste them into place.

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