Слайд 2Tsunami
A tsunami is a train of gigantic
waves that occur after an earthquake or volcanic eruption. They
can be as high as 30 meters or ten feet, travel as fast as a jet plane and go as far inland as 2 kilometers or 1 ¼ miles. Most tsunamis happen in the Pacific.
Слайд 3Mudslides
Mudslides are fast moving landslides that occur after heavy
rains. They are rivers of mud.They can destroy and kill
everything in their path.
Слайд 4Earthquakes
Earthquakes are caused by the movement of
the earth’s plates, which lie under the surface of the
earth. Earthquakes occur suddenly. 4 out of 5 earthquakes take place in the Pacific Rim.
Слайд 5Avalanche
An avalanche is a like a mudslide except
it is made up of snow and ice. They occur
in the mountains after fresh snowfalls and can travel at 80 miles an hour or 128 kilometers per hour.
Слайд 6Drought
Drought: A drought occurs when there has not
been enough rain so that crops and plants can grow.
Farm animals die and people don’t have enough to eat.
Слайд 7Forest Fires
Forest fires are fires that burn
in forest areas. Lightning can start them but usually careless
people do. There are 100,000 fires in the US every year. They can travel at 14 miles an hour or 23 kilometers an hour and will destroy everything as they move. Drought and hot weather are also responsible for many fires.
Слайд 8Blizzards
Blizzards are severe snowstorms with very
high winds, extremely low temperatures, and poor or no visibility.
They are especially dangerous for travelers who may get stuck in their cars and could suffer from hypothermia
Слайд 9Typhoons & Cyclones
Typhoons are rotating tropical storms like
hurricanes, but they occur in the north-west Pacific Ocean near
Hawaii and Asia. Their winds can reach 200 miles per hour/320 kilometers per hour. Cyclones are similar storms in the Indian Ocean. They both have torrential rains and storm surges- causing massive flooding.
Слайд 10Floods
Floods are one of the worst natural
disasters and cost the most money. They occur when storms
cause rivers to overflow or by high tides. They cause enormous damage and loss of life.
Слайд 11Volcanoes
Volcanoes are explosions that happen from openings in
the earth’s surface. Most volcanoes are located in the Pacific
Rim. When volcanoes erupt, they spew magma, lava, and ash. There are between 1,300 to 1,500 volcanoes on earth.
Слайд 12Tornadoes
A tornado is a spinning tube of
air that touches the ground and a cloud above. They
usually travel only a few miles but can destroy everything in their wake.The US has 1200 a year- more than anywhere else in the world.
Слайд 13Hurricanes
Hurricanes are strong tropical storms with high winds and
heavy rain that develop in the Atlantic Ocean. Each hurricane
has a boy’s or girl’s name. They cause tremendous damage when they hit land. They occur from June until November in the US.
Слайд 14Other Disasters
Heat waves- temperatures over 38C. Or 100F for an
extended period of time
Hailstorms- round balls of frozen rain- can
destroy crops
Epidemics- fast spreading diseases- some serious others often fatal such as Ebola
Wildfires- out of control fires in inhabited areas- destroy houses and crops
Thunderstorms- lighting can cause fires and kill people
Слайд 15What doesn’t belong?
earthquake
fog
tsunami
noise
wind
shaking
Richter Scale
Double click on words.
Слайд 16What doesn’t belong?
tsunami
lightning
high waves
tornado
fires
jet speed
earthquakes
Click on the words.
Слайд 18Name the natural disaster.
Describe it briefly.
Then
CHECK