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All About Natural Disasters

All About Natural Disasters . By Caroline Jones Mrs. Robles’ Science Class. Tsunamis. What is a tsunami? A tsunami is a series of huge, dangerous waves caused by an underwater volcanic eruption. Facts about Tsunamis… 90% of tsunamis occur in the Pacific Ocean.

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All About Natural Disasters

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  1. All About Natural Disasters By Caroline Jones Mrs. Robles’ Science Class

  2. Tsunamis What is a tsunami? A tsunami is a series of huge, dangerous waves caused by an underwater volcanic eruption. Facts about Tsunamis… • 90% of tsunamis occur in the Pacific Ocean. • A tsunami can travel over 600 miles per hour. • A tsunami can travel across an entire ocean in just a few hours. • Tsunamis are rare. Only about 6 major tsunamis occur every century.

  3. Hurricanes What is a hurricane? A hurricane is a tropical storm with violent winds that is formed over water using water vapor. Facts about Hurricanes… • The wind speed has to be at least 74 miles per hour to be considered a hurricane. • The most extreme hurricanes can reach wind speeds of over 160 mph. • In Category 5 hurricanes, whole buildings can be completely destroyed.

  4. Tornadoes What is a tornado? A tornado is a vortex of spiraling winds caused by hot and cold air mixing together. Facts about tornadoes… • A tornado looks like a funnel-shaped cloud. • Tornadoes can cause lots of damage, they can move things and pick things up. • The most extreme tornadoes can reach a speed of 300 miles per hour.

  5. Floods What are floods? A flood is when there is too much water in an area. Floods are caused by storms or just getting too much rain. Facts about floods… • Floods have caused more than 10,000 deaths in the United States since 1990. • Flash floods can cause 10 to 20 feet of water. • 2 feet of water can float a vehicle, even a bus.

  6. Droughts What is a drought? A drought is when there is not enough rain and there is not enough water. Facts about droughts… • Droughts cause problems with crops because without enough water they can’t grow. • The biggest drought recorded in the US is called the “Dust Bowl” which lasted from 1933 to 1938. • There is nothing people can do to prevent droughts.

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