Any guesses what the next area of focus will be?

Any guesses what the next area of focus will be?
Copyright © 2010 Ryan P. Murphy

Bellringer What are the two ways to increase salinity in the ocean?
2. How do most cold currents move? 3. Why does warm water rise above colder water in the ocean? 4. What is a scavenger?

Any guesses what the next area of focus will be?

Wind is The movement of air, from high pressure to low pressure.

Temperature differences over the land and over seas.

Cool air has high pressure
Warm air has low pressure

An important renewable resource.

Brings rain – Without wind, the land wouldn’t get the evaporated water from the oceans.

Wind blowing through your hair feels good / cools you down.

The wind brings smell. Water, prey items, predators, etc.

Wind allows a bird to fly with minimal effort.

Many insects use wind to move / disperse.

To dry out and also to cool down.

Crocodiles and alligators open their mouths and allow wind to cool them down.

Global Winds (Word Bank) Go back to drawing of globe
- Doldrums - Horse latitudes - Trade Winds - Prevailing Westerlies - Polar Easterlies Copyright © 2010 Ryan P. Murphy

Doldrums- Areas of no wind
Doldrums- Areas of no wind , occurs at the equator, air here heats up fast causing low pressure. Copyright © 2010 Ryan P. Murphy

Horse Latitudes- Areas of no wind occurs at 30N + 30, air stops moving toward the poles and sinks.

Horse Latitudes- Areas of no wind occurs at 30N + 30, air stops moving toward the poles and sinks.
When boats couldn’t find winds they would drop their weight. Often horses. Copyright © 2010 Ryan P. Murphy

Polar Easterlies- Cold air sinks and heads toward the equator,

Polar Easterlies- Cold air sinks and heads toward the equator, Coriolis Effect curves the winds

Most importantly, wind travels from areas of high pressure to areas of low pressure!

Most importantly, wind travels from areas of high pressure to areas of low pressure!
Coriolis Force High Pressure Low Pressure Wind Copyright © 2010 Ryan P. Murphy

Jet Stream: Like the ocean current in the movie except in the air.

What’s it like playing Frisbee or Whiffle Ball on the beach?

Sea Breeze (Day): The breeze that blows from the sea toward the land during the day.

Caused by air rising over the warmer land (day) and is replaced by cooler air from above the sea.

Land Breeze (Night): The breeze that blows from the land toward the sea.

Night Night Land Breeze
Land Breeze (Night): The breeze that blows from the land toward the sea. High specific heat of water slowly releases stored energy from the day during the night making the water warmer than the land. Night Night Land Breeze Copyright © 2010 Ryan P. Murphy

A B Which is a sea breeze and which is a land breeze?

Sea Breeze A B Which is a sea breeze and which is a land breeze?

Wind It’s caused by the different temperatures (and therefore air pressure differences) around a planet.

Wind “Yeh, Wind.”

Any guesses what the next area of focus will be?

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Any guesses what the next area of focus will be?

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