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Watercycle
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Watercycle

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Transcript

  • 1. The Water Cycle
  • 2. The Water CycleEvaporationSun heats waterLiquid water changes to gas (vapor)Water vapor riseswith warm air
  • 3. Humidity Warm Air Cold Air Amount of water vapor, or moisture in the air Changes with temperature Warm air holds more moisture than cold air
  • 4. Measuring Humidity Hygrometer is used to measure the amount of water vapor in the air.
  • 5. The Water Cycle Condensation  Water vapor cools  Tiny water droplets or ice crystals form  Get bigger and heavier
  • 6. The Water Cycle Precipitation Air can’t hold up heavy water droplets or ice crystals They begin to fall
  • 7. The Water Cycle All the different forms of water that fall from the sky.
  • 8. PrecipitationThe air temperature determines the form of precipitation.
  • 9. Types of PrecipitationRain Liquid Air temperature above 32 degrees FahrenheitSnow Solid Air temperature below 32 degrees FahrenheitHail Solid Formed in clouds Winds carry frozen drops higher Layers of ice are added RepeatsSleet Mixture Air temperature just above freezing
  • 10. Measuring PrecipitationRain gauge Open container that collects precipitation Scale on side of container shows how much has fallen
  • 11. The Water Cycle Runoff Water that does not soak into the ground Runs downhill into puddles, streams, rivers, or lakes Then the whole cycle begins again
  • 12. Review of the Water Cycle

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