Warm-up: Monday: Copy the “Need to Know” words – Test on Friday!
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Transcript of Warm-up: Monday: Copy the “Need to Know” words – Test on Friday!
Warm-up: WednesdayWhat landform is this?
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Reminder! You will be having a vocab quiz on Friday that includes all of the following:
• Vocab from Monday (Water and Soil)• Physical geography terms• Extreme weather/ natural hazards
Review of landforms!
Continental Shelf—A shallow ocean area near the coast of a continent
Fjord—Narrow deep inlets of the sea set between high rocky cliffs
Fjords in Norway
Glacier—A large body of ice that moves across the surface of the earth
Atoll—A ring-shaped coral island or ring of several islands linked by
underwater coral reefs
Basins—Low areas of land, often surrounded by mountains
River basin- a basin that is not bowl shaped and has a river running through it; one end of the basin must be low enough for the river to flow toward a larger body of water
Extreme Weather and Natural Hazards
What are they and how are people affected by them?
Natural Hazards
• Natural hazards – events in the physical environment that can destroy human life and property.
Natural hazards risk mapNatural Hazard Risk in the U.S.
Hurricanes
Hurricane - a tropical cyclone with winds of 74 miles per hour or greater that occurs especially in the western Atlantic
The barrier islands of Texas, Florida, and the Carolinas are particularly at risk of hurricane damage.
Flooding is the greatest danger posed by hurricanes.
Hurricane Ike: September 2008
Typhoons• Typhoons – term for hurricanes in the
western Pacific Ocean• Occur June – November• Average 27 storms a year
Typhoons - 2011
http://player.discoveryeducation.com/index.cfm?guidAssetId=FA286C33-EC86-4356-A81C-2FE85F3DBDC8&blnFromSearch=1&productcode=US
Tornadoes• A violently rotating
column of air extending from a thunderstorm to the ground.
• Found most frequently in the United States east of the Rocky Mountains during the spring and summer months
http://video.nationalgeographic.com/video/101-videos/tornadoes-101
• What is the difference between a Tornado WATCH and a Tornado WARNING?
• WATCH = weather conditions are favorable for tornadoes
• WARNING = a tornado has been spotted or detected by radar
Tornadoes
• There are about 500,000 earthquakes every year worldwide.
• People only feel a small fraction of those.
• Earthquakes happen when plates within the Earth suddenly shift or break under stress, sending shock waves rippling.
Earthquakes
Earthquakes• Seismic - Relating to an earthquake or to other tremors
of the Earth, such as those caused by large explosions.
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• Japan is the most seismically active country in the world
• It is made up of 4 main islands and several thousand smaller islands which lie at the junction of three tectonic plates
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Earthquakes: Japan
Earthquakes
• What technological innovations help Americans adapt to this hazard?– Special building
techniques and materials
• http://player.discoveryeducation.com/index.cfm?guidAssetId=BFA6C787-E123-4BFF-80ED-6AB985DFEDBA&blnFromSearch=1&productcode=US
Warm-up: Monsoons1. What are monsoons?2. Describe winters in India:3. What direction do the monsoon winds blow
during the winter?4. Why is the temperature high during the winter?5. Which direction do the summer monsoons come
from?6. What do the summer monsoons bring from June
to September?7. Why are the summer monsoons welcomed in
India?
Tsunamis
• Tsunamis – large sea waves created by undersea tectonic activity
• http://www.youtube.com/watch?v=j0YOXVlPUu4
• 2004 Indian Ocean Tsunami- One of the most devastating natural disasters of modern times• Killed more than 225,000 people in 11 countries • Caused by an earthquake • Produced waves up to 100 feet high • Took anywhere from fifteen minutes to seven hours
(for Somalia) to reach the various coastlines.
Tsunamis
http://www.noaanews.noaa.gov/video/tsunami-indonesia2004.mov
http://www.youtube.com/watch?v=j9JDzBTwiig&NR=1
Warning Signs• On Maikhao beach in northern Thailand, a 10-year-old
British tourist had studied tsunami in geography class at school and recognized the warning signs of the receding ocean and frothing bubbles. She and her parents warned others on the beach, which was evacuated safely.
Experts say that “a receding ocean may give people as much as five minutes’ warning to escape to high ground” (National Geographic)
Tsunamis
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Warning Signs
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Devastating effects
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Volcanoes
• About 1,900 volcanoes are active today or known to have been active in historical times.
• Almost 90% are in the Ring of Fire.
Volcanoes
http://player.discoveryeducation.com/index.cfm?guidAssetId=EA5B759C-F351-4AB0-98AD-D46D01E2BCB6&blnFromSearch=1&productcode=US
Drought• Drought - A prolonged period of abnormally low
precipitation; a shortage of water resulting from this.• http://video.nationalgeographic.com/video/101-videos/droughts
• Drought can lead to famine – widespread shortage of food
Drought
Flooding
• Monsoon – wind system in which winds reverse direction and cause seasons of wet and dry weather
• Bangladesh - 20 to 60% floods every year
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Landslides• Occur frequently in hills and
mountainous areas• Caused by heavy rainfall and
human activities such as deforestation, construction, and cultivation
• These factors have weakened the slopes
• http://www.dailymail.co.uk/news/article-2588991/Incredible-shots-devastation-caused-Washington-landslide-left-14-dead-revealed-geologists-warned-dangers-1999.html
http://player.discoveryeducation.com/index.cfm?guidAssetId=ED7A7498-7930-4696-BDAA-E08E1DBF4A8E&blnFromSearch=1&productcode=US
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Landslides
Warm-up:
• Write about an experience you have had with a natural hazard. How did you feel, did you have to prepare, what was it like?– Flood, earthquake, hurricane, tornado, etc.