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Interactive video lesson plan for: Why Are There Clouds?

Activity overview:

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MinuteEarth provides an energetic and entertaining view of trends in earth’s environment – in just a few minutes!

Created by Henry Reich
With the MinuteEarth team: Alex Reich, Peter Reich, Emily Elert, Ever Salazar, Kate Yoshida, and Henry Reich. Music by Nathaniel Schroeder: http://www.soundcloud.com/drschroeder

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Want to learn more about the topic in this week’s video? Here are some key words/phrases to get your googling started:
– Lifting Condensation Level (LCL): The altitude at which the water vapor in rising air begins to condense
– Adiabatic Cooling: describes the process by which an air blob cools as it rises (and as air pressure drops)
– Latent heat: the energy absorbed by water molecules during evaporation and released during condensation
– Energy of Vaporization: The amount of energy it takes for a liquid to evaporate
– Ideal Gas Law: The rule about how a volume of gas at a constant temperature and pressure always has the same number of molecules
– Supercell: A really big thunderstorm. Like, the biggest.



Abraham. F.F. (1974) Homogeneous Nucleation Theory: The Pretransition Theory of Vapor Condensation. Academic Press

Cameron Balloons (Accessed February 2015) Web Resource

Grützun, V. (Accessed February 2015) Cloud Microphysics Part I. Lecture Notes. Web Resource

Grützun, V., personal communication, 2015

Houze, R.A., Jr. (2014) Cloud Dynamics. Academic Press. eBook

Mental Floss (Accessed February 2015 ) How Much Does a Cloud Weigh? Web Resource http://mentalfloss.com/article/49786/how-much-does-cloud-weigh

Pruppacher, H.R., Klett, J.D. (2010) Microphysics of Clouds and Precipitation. eBook Springer Science & Business Media, Jun 25, 2010.

The Weather Window (Accessed March 2015) Web Resource

Tagged under: MinuteEarth,Minute Earth,MinutePhysics,Minute Physics,earth,history,science,environment,environmental science,earth science,clouds,cumulus clouds,cloud,condensation,cumulonimbus,atmosphere,atmospheric science,evaporation,rain,weather,meteorology,latent heat,lifting condensation level,adiabatic cooling,thunderstorms,energy vaporization,hot-air balloons

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