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U5 disasters test review.pptx


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U5 disasters test review.pptx

  1. 1. Natural Disruptive Events Test Review (Unit 5) 2014-2015
  2. 2. Lightning is formed when excited electrons in the clouds are attracted to positive charges within a cloud, between clouds, or on the ground. What type of energy is released when this happens? light and sound
  3. 3. Hurricanes are formed when ocean temperatures exceed 80°F. What type of energy is this? Thermal (heat)
  4. 4. Tornado warnings are issued when tornadoes have been sighted in an area. When do you think tornado watches are issued? When conditions are right for tornadoes to form.
  5. 5. What effects does a volcanic eruption have on the local environment? • Ash and dust in the air can affect plants and animals in the area • Lava flow can kill trees and other vegetation • Coral reefs can be destroyed by lava flow into the ocean
  6. 6. Explain why hurricane season in the Atlantic Ocean is from June to November. The ocean temperatures must be warmer than 80°F. The summer months have the warmest temperatures.
  7. 7. Name at least 1 condition that upgrades a thunderstorm to “severe”. 1. Hail that is ¾” or bigger 2. Wind gusts greater than 58 mph 3. Tornado formation
  8. 8. Name at least 1 condition that must be present for a hurricane to form. • Ocean temperature greater than 80°F • Winds of similar speed blowing in the same direction • Drop in atmospheric temperature as winds move upwards • Location: just north of the equator over the ocean • Dry winds blowing off the African coast
  9. 9. When a tropical storm reaches the criteria to be classified as a hurricane, it is given a name. How are hurricanes named? Alphabetically
  10. 10. Tropical storms are classified as hurricanes when wind speeds reach … 74 mph
  11. 11. The center of many tropical weather patterns is called … the eye.
  12. 12. Which describes a drought? A.A very long period of heavy rain B.High temperatures for an extended period of time C.A large wave generated by an earthquake D.An extended period of very dry conditions D
  13. 13. What structure in Galveston was built to protect the island from storm surges? A.The Hotel Galvez B.The Seawall C.UTMB D.Moody Gardens E.Schlitterbahn Water Park B
  14. 14. Tornadoes are measured on the _____ scale. A.Seismic B.Fujita (EF) C.Richter D.Doppler E.Metric F. Category B
  15. 15. Hurricanes are ranked according to wind speed. How many categories are there for ranking hurricanes? 5
  16. 16. Hurricanes are called by another name when they occur in the Southern Pacific Ocean, the Indian Ocean, and near Australia. What is that name? cyclone
  17. 17. Of all the natural disruptive events we have learned about, which has the most widespread negative effect on Texas ecosystems? hurrican es
  18. 18. Name at least 1 vehicle or tool scientists use to monitor hurricane activity. Ships Satellites Airplane s
  19. 19. Which part of volcanic eruptions is responsible for affecting Earth’s weather and climate? Dust and ash ejected into the atmosphere upon eruption
  20. 20. Cyclone: a tropical storm that forms in the Southern Pacific or Indian Ocean Typhoon: a storm that forms in the Northwest Pacific (near Japan) Hurricane: severe tropical storm that forms over the North Atlantic Ocean What do all these storms have in common? They all form over an ocean.
  21. 21. Earth’s atmosphere is found _____________. surroundin g the planet
  22. 22. As severe storms come ashore, they push large volumes of water onto the land, threatening lives, and causing flooding and property damage. What is this flood called? Storm surge
  23. 23. Blizzards dump enormous amounts of snow on land. What is an effect that might follow a blizzard? flooding
  24. 24. Tornado Alley stretches from Nebraska to Texas. Why is this region prone to tornado activity? Conditions in tornado alley are favorable for tornado formation. During the summer, the plains of Middle America get very hot (creating updrafts) and there are many thunderstorms. Tornadoes form during thunderstorms, when unstable hot air near the ground rises and meets the cooler air above in the thunder clouds. Tornadoes can form at any time of the year, but most of them form from March to August (in the Northern Hemisphere). The flatter landscape allows storms to travel without mountains or other landforms to block them.
  25. 25. Which storms have overall stronger winds: hurricanes or tornadoes? tornadoes
  26. 26. Where can droughts occur? In any area and climate where there is a lack of precipitation over a long period of time.
  27. 27. What are the 2 most destructive parts of a hurricane? wind and water
  28. 28. Most tornadoes occur in the late afternoon. Why? The ground is hotter because it has had more time to absorb