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Objective: 2/26/2013. List three types of cloud forms. Intro. Write Q&A in notebook: What do you think is happening when you exhale and see a “cloud” of breath in cold temperatures?. Clouds. Condensation. Water vapor needs a surface to condense on.

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Intro

Objective: 2/26/2013

List three types of cloud forms.

Intro

  • Write Q&A in notebook:

    • What do you think is happening when you exhale and see a “cloud” of breath in cold temperatures?


Clouds

Clouds


Intro

  • Condensation

  • Water vapor needs a surface to condense on


Intro

  • Collection of small water droplets or ice crystals suspended in air

  • Forms when the air is cooled and condensation occurs

  • Droplets can only form on solid surfaces

    • Dust particles mostly

  • Cloud


Intro

  • Three main types:

  • Classified by:

  • Cumulus clouds

  • Stratus clouds

  • Cirrus clouds

  • Form

  • Altitude


Intro

  • Cumulus Clouds

  • Puffy, white clouds with flat bottoms

  • Indicate fair weather

  • If they get very large, can form thunderstorms (cumulonimbus cloud)


Intro

  • Stratus clouds

  • Form in layers

  • Cover large areas of the sky and block out the Sun

  • Lower in altitude

  • Nimbostratus clouds – dark and rains continuously

  • Fog – stratus cloud on the ground


Intro

  • Cirrus clouds

  • Thin, feathery, white clouds

  • Form at very high altitudes where winds are strong

  • Made of ice crystals

  • Indicate a change of weather is coming


Intro

  • Precipitation

  • When clouds become full of water, they release it as either:

    • Rain – liquid water falls to ground

    • Snow – water freezes into snowflakes that fall to ground

    • Sleet (flipchart)

    • Hail (flipchart)


Intro

Objective: 2/26/2013

List three types of cloud forms.

Outro

At what altitude would you find a altostratus cloud? (low, medium, high)


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