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Today is Wednesday, December 19, 2012

Today is Wednesday, December 19, 2012. Homework: Read Chapter 8, Lesson 3 Warm Up: With your FACE PARTNER, discuss some different types of severe weather patterns you can think of. Goal for Today.

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Today is Wednesday, December 19, 2012

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  1. Today is Wednesday, December 19, 2012 • Homework: Read Chapter 8, Lesson 3 • Warm Up: • With your FACE PARTNER, discuss some different types of severe weather patterns you can think of.

  2. Goal for Today • SWBAT demonstrate the ability to analyze types of severe weather patterns by comparing and contrasting causes and structures.

  3. Severe Weather

  4. Thunderstorms • Generally form in 3 Stages (with Thunderhead Cloud – Cumulonimbus) • We see lightning due to negative charges at the bottom of the cloud and positive on the ground – static electricity builds and “breaks free”, trying to get to the ground • Hear thunder due to rapidly expanding air as electricity rips it apart.

  5. Stage 1 Developing Stage

  6. Stage 2 Mature Stage

  7. Stage 3 Dissipating Stage

  8. Let’s see….. • What Tim and Moby have to say about it!!!!!

  9. Tornadoes • Layers of wind blowing at different speeds and/or directions, creating a column of air spinning (like “a log on its side”) • Upward winds lift one end up and downward winds push the other end down • Funnel cloud is a vertical spinning column of air. When it touches ground, it becomes a tornado!!!!! • Winds are hundreds of kilometers per hour

  10. Tim and Moby?

  11. Hurricanes • Get their energy from warm ocean water • As water evaporates from the ocean, it rises as warm air and forms clouds • If air pressure is low enough, this warm air mass will naturally start to spin • As this continues, speed builds • Winds aren’t as fast as tornadoes, but is more destructive. • Why do you think it might be more destructive?

  12. Anything from…. • Tim and Moby on Hurricanes?????

  13. Closing it up…. • Tell your shoulder partner (or 3 person group) how ONE TYPE of severe weather we talked about today forms.

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