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  1. Is rain formed by the condensation of water vapor or by the melting of ice?

    ... among cloud droplets, which are first formed by vapor condensation . Coalescence is probably the dominant rain-forming mechanism ... can first appear at levels warmer that 0° C, where vapor condensation and coalescence are the main rain producers. Thus, precipitation ...

    JacobAdmin - 06/14/2019 - 12:16

  2. Evaporation Investigation

    ... Formal Keywords:  evaporation , condensation , precipitation , transpiration , ice , liquid , ...

    JacobAdmin - 05/24/2017 - 14:31

  3. Real World: Global Cloud Observation Day

    ... , atmosphere , water vapor , evaporation , condensation , aerosols , condensation nuclei Summary:  Learn about precipitation and ...

    JacobAdmin - 08/14/2012 - 11:53

  4. What are clouds made of? Are they more likely to form in polluted air or in pristine air?

    ... in the air is cooled and starts to condense around tiny " condensation nuclei" (particles so small they are invisible to the naked ... aerosols is crucial: without them, in absolutely clean air, condensation would not start until the relative humidity has reached several ...

    JacobAdmin - 06/14/2019 - 12:16

  5. NASA Earth Science: Water Cycle

    NASA Earth Science: Water Cycle Primary Topic:  Water Cycle Subtopics:  Hydrologic Cycle , Earth Systems Type:  Article Audience:  Informal ,...

    JacobAdmin - 09/17/2012 - 12:20

  6. USGS Water Cycle Diagram

    ... Informal Keywords:  evaporation , condensation , precipitation , groundwater , runoff , snowmelt , ... A diagram of the water cycle showing evaporation, condensation, precipitation and more. ...

    JacobAdmin - 06/28/2012 - 12:32

  7. NASA S'COOL: Students' Cloud Observations On-Line

    ... , atmosphere , water vapor , evaporation , condensation , CERES Standards:  ESS2.C , ESS2.D ...

    JacobAdmin - 09/07/2012 - 17:03

  8. The Water Cycle - Animation

    ... ESS2.C Keywords:  evaporation , condensation , groundwater , animations Summary:  This ...

    JacobAdmin - 01/20/2015 - 11:51

  9. Earth's Water Cycle

    ... Keywords:  freshwater , evaporation , condensation Summary:  This animation uses Earth science ...

    JacobAdmin - 10/03/2012 - 12:32

  10. A Tour of the Water Cycle

    ... hydrologic cycle , precipitation , evaporation , condensation , animations Summary:  This animation shows ...

    JacobAdmin - 03/04/2016 - 17:15

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