Your SlideShare is downloading. ×
7th Grade Chapter 6 Lesson 3
Upcoming SlideShare
Loading in...5
×

Thanks for flagging this SlideShare!

Oops! An error has occurred.

×

Saving this for later?

Get the SlideShare app to save on your phone or tablet. Read anywhere, anytime - even offline.

Text the download link to your phone

Standard text messaging rates apply

7th Grade Chapter 6 Lesson 3

650
views

Published on

For Student Use Only

For Student Use Only

Published in: Business, Technology

0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total Views
650
On Slideshare
0
From Embeds
0
Number of Embeds
2
Actions
Shares
0
Downloads
0
Comments
0
Likes
0
Embeds 0
No embeds

Report content
Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
No notes for slide

Transcript

  • 1. 7th Grade Chapter 6 Lesson 3
      • Pgs. 207 - 211
      • For Student Use Only
  • 2. Local Winds
    • Wind:
      • Horizontal movement of air
    • Vertical Movement of Air:
      • Current, updraft, or downdraft
        • Upward air- ascending
        • Downward air- subsiding
    • Air heats by: Conduction
      • The DIRECT transfer of heat from one object to another
  • 3. Local Winds
    • Local Wind- wind movement in a smaller area
    • Heat is transferred from molecule to molecule
      • Cold ground and cold air have little heat to pass on
      • Air can help control the temperature of a region
      • Air can be warm or cool
    • Air travels:
      • Air always goes from an area of high pressure to an area of low pressure
  • 4. Local Winds
    • Warm Air=
      • Faster molecules
      • More spread out
      • Lower pressure (rises)
    • Cold Air=
      • Slower molecules
      • Close together
      • Higher Pressure
  • 5. Local Winds
    • Water and Land:
      • Sea breezes (or lake breezes) bring cool air during the day
        • Cool air from the water rushes to fill the area where the hot land air rose
    • Woods:
      • Forest breeze
        • Cool air from under the tress rushes to fill the area where there are no trees and the land is warm and air is rising
  • 6. Local Winds
    • Valley Breeze:
      • Day: Breeze blows up from the valley
        • Mountains peaks warm more quickly than the valley
        • Cool air rises up to the warm mountain from the cool valley
    • Mountain Breeze:
      • Night: Breeze blows from the mountain
        • Valley cools very slowly, mountain cools quickly
        • Air goes from cooler area to warmer area
  • 7. Local Winds
    • Katabatic Winds:
      • Movements of cold air from higher elevations to lower elevations
      • Cool air from mountains rush to fill warmer areas
  • 8. Local Winds
    • Foehn (Alps) and Chinook (Am. Rockies):
      • Gusty winds caused by cold air seeking an area of warm air
        • Windward: side of mountain facing wind, warm air gets forced up the mountain and creates clouds (as air gets cooler) (Note: Condensation helps air stay warm)
        • Leeward: side of the mountain facing away from wind: warm air that is now drier blows over surface and brings warmer, dry air to leeward side