Do you know the answers…
Warm Up
True or False: Cold air rises and warm air sinks.
FALSE
True or False: A Land breeze is wind blowing from the
land toward the sea, especially at night due to the
relative warmth of the sea.
TRUE
Convection Currents
• CONVECTION is the transfer of
heat through the movement of
fluids – liquids and gases
• In convection, hot fluids rise and
cool fluids sink
= Convection current
Liquids
Gases
Land and Sea Breeze
• Caused by CONVECTION CURRENTS in the air
• Air pressure changes are the driving force
• Land Breezes occur at NIGHT
• Sea Breezes occur during the DAY
(If you SEE the sun, you have a SEA breeze!)
All about WIND!
• Wind is MOVING AIR
• Let’s watch
BILL NYE: WIND
•
Wind mills have been in use since
2000 B.C. and were first
developed in China and Persia.
•
Wind chill is the cooling effect of
wind on skin. If the wind is strong,
it causes heat loss on the skin and
a person or animal feels cold.
1.Menu Project
2.More Heat Transfer Worksheet
1.Study Guide
2.Class Notes
Websites from the Presentation
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https://www.youtube.com/watch?v=bN7E6FCuMbY
(Warm Water Rises – Cold Water Sinks)
https://www.youtube.com/watch?v=4cOMushj7w8
(Warm Air Rises – The Spinning Plate)
http://96.8.85.121/video/sea-breeze-explained-26695
(Sea Breeze Explained)
http://oceanservice.noaa.gov/education/pd/oceans_weather_climate/media/sea_and_land_breeze.swf
(NSTA Interactive – Land and Sea Breeze Combined)
http://www.schooltube.com/video/374fb8d368df43ffaae2/Bill%20Nye%20Wind
(Bill Nye – Wind)