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CHAPTER 20 WEATHER

CHAPTER 20 WEATHER. Monday December 10, 2012. TODAY’S KEY IDEA: Energy enters the Earth system primarily as solar radiation and eventually escapes as heat. CaStd . Earth Science 4: Energy in the Earth System. Journal of Learning Final Exam P2: 12/19 Wednesday 1 hour Final Examination

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CHAPTER 20 WEATHER

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  1. CHAPTER 20WEATHER

  2. Monday December 10, 2012 TODAY’S KEY IDEA: Energy enters the Earth system primarily as solar radiation and eventually escapes as heat. CaStd. Earth Science 4: Energy in the Earth System • Journal of Learning • Final Exam • P2: 12/19 Wednesday • 1 hour Final Examination • ½ hour Chapter 20 Weather Exam

  3. SECONDARY IDEAS: • Weather is caused by warmer air interacting with cooler air. • Convection currents are caused by less dense air rising and more dense air sinking to fill in the “hole”. • Warmer air is LESS DENSE than cooler air. • Less dense matter “floats” on top of more dense matter. Monday October 21, 2012 DENSITY LESS DENSE RISES! TODAY’S KEY IDEA: Energy enters the Earth system primarily as solar radiation and eventually escapes as heat. CaStd. Earth Science 4: Energy in the Earth System

  4. What did I just say? In sentence form, write what I recently said about DENSITY. Now, ask your neighbor to READ YOUR STATEMENT and then to make a meaningful comment about DENSITY. In sentence form, write what I recently said about how WARMER MATTER AND COOLER AIR interact. Now, ask your neighbor to READ YOUR STATEMENT and then to make a meaningful comment about how WARMER MATTER AND COOLER AIR interact.

  5. ENDP 2

  6. 20.4 Hurricanes and Winter Storms

  7. Monday December 10, 2012 TODAY’S KEY IDEA: Energy enters the Earth system primarily as solar radiation and eventually escapes as heat. CaStd. Earth Science 4: Energy in the Earth System • Journal of Learning • Final Exam • P2: 12/19 Wednesday • 1 hour Final Examination • ½ hour Chapter 20 Weather Exam

  8. HAVE ONLY THE FOLLOWING • ON YOUR TABLE • Pen or Pencil • Journal of Learning • 1 sheet of Plain Paper • Powerpoint Notes • Chapter 20.4 HURRICANES

  9. Chapter 20.4 - Hurricanes • Section 20.4 - Agenda • Hurricanes • -What is a Hurricane • -Hurricane Formation • -Effects of Hurricanes • Hurricane Warnings • Winter Storms

  10. Hurricanes A Hurricane is a large rotating storm of tropical origin that has sustained winds of at least119km/hour (74 mph)

  11. Hurricane Facts • Most Violent Storms on Earth!!! • Gets its energy from the heat of the • oceans surface. • Hurricanes that occur in the Pacific Ocean are called Typhoons. • Hurricanes occur Form between 5 degrees and 20 degrees latitude.

  12. SCANTRON DAILY QUIZ 51. Which statement below is FALSE? • Warmer magma rises and eventually is expelled as lava. • A COLD FRONT occurs when a cold air mass collides with warmer air mass causing the warm air to rise. • During the day, after the land becomes warmer than the ocean, air above the land mass rises and the cooler air from the ocean flows onto the land. • Warm air sinks to the ground. 52. What is a temperature inversion? • When the air is thicker • When cold air is above and traps warm air on the ground. • When colder air is closer to the ground • When there is smog in the air 53. What is the most abundant gas in the atmosphere is • Nitrogen • Oxygen • Argon • Carbon dioxide NOW, WRITE THE CORRECT ANSWERS IN SENTENCE FORM.

  13. SCANTRON DAILY QUIZ 54. What is NOT a synonym for Sustained? • Continued • Long term • Slow • Strong 55. Hurricanes get their energy from warm Gulf of Mexico water, which gets its energy from • The sun • The Atlantic Ocean • The Pacific Ocean • The North American Tectonic Plate 56. Where do hurricanes NOT occur? • In the warm ocean waters around the Equator • Near the poles • Between 5 – 20 degrees below the Equator • Between 5 – 20 degrees above the Equator NOW, WRITE THE CORRECT ANSWERS IN SENTENCE FORM.

  14. LINED PAPER… What did you just learn? In sentence form, write what you just leaned about HURRICANES. Now, ask your neighbor to READ YOUR STATEMENT and then to write a meaningful comment about HURRICANES.

  15. Hurricane Profile – The Eye • At the very center • About 20 km (12.5 miles) diameter • Precipitation ceases • Winds subside Vis2008

  16. Air gradually descends and heats by compression. • Warmest part of the storm

  17. Eye

  18. Hurricane Profile – The Eye Wall • The Eye Wall • Near the center • Strongest winds • Heaviest rainfall • Air is rising.

  19. Intenseconvective action. • Wall of cumulonimbus clouds.

  20. Eye Eye wall

  21. Hurricane Profile – Feeder Bands Feeder Bands Bands of thunderstorms known as feeder bands that spiral in toward the center of the hurricane.

  22. Eye Eye wall Feeder bands

  23. SCANTRON DAILY QUIZ 57. The center of a hurricane is called the • eye • wall • circle • hole 58. A synonym for subside is • stop • start • restart • continue 59. Which of the following is NOT precipitation? • Rain • Snow • Hail • Smog NOW, WRITE MEANINGFUL SENTENCE FOR EACH QUESTION.

  24. SCANTRON DAILY QUIZ 60. Which of the following is most true of the Eye of the Hurricane? • There is no precipitation • There is no wind • The eye is about 12 miles wide • All of the above 61. Which of the following is most true of about the Eye Wall? • Warm air is rising in the wall • The wall has the strongest winds of the hurricane • It is an area of intense convection currents • All of the above 62. Which of the following statements is NOT true? • The Eye of the hurricane is the warmest part of the hurricane. • The feeder bands are spiraling bands of thunderstorms. • The feeder bands of a hurricane have the same appearance as the arms in a Spiral Galaxy. • Most hurricanes occur in the Pacific Ocean near Hawaii. NOW, WRITE THE CORRECT ANSWERS IN SENTENCE FORM.

  25. SCANTRON DAILY QUIZ 63. Where do hurricanes NOT occur? • In the warm ocean waters around the Equator • Near the poles • Between 5 – 20 degrees below the Equator • Between 5 – 20 degrees above the Equator 64. What is the most abundant gas in the atmosphere is • Nitrogen • Oxygen • Argon • Carbon dioxide 65. What is NOT a synonym for Sustained? • Continued • Long term • Slow • Strong NOW, WRITE THE CORRECT ANSWERS IN SENTENCE FORM.

  26. SCANTRON DAILY QUIZ 66. Hurricanes get their energy from warm Gulf of Mexico water, which gets its energy from • The sun • The Atlantic Ocean • The Pacific Ocean • The North American Tectonic Plate 67. Which statement below is FALSE? • Warmer magma rises and eventually is expelled as lava. • A COLD FRONT occurs when a cold air mass collides with warmer air mass causing the warm air to rise. • During the day, after the land becomes warmer than the ocean, air above the land mass rises and the cooler air from the ocean flows onto the land. • Warm air sinks to the ground. 68. What is a temperature inversion? • When the air is thicker • When cold air is above and traps warm air on the ground. • When colder air is closer to the ground • When there is smog in the air • Carbon dioxid NOW, WRITE MEANINGFUL SENTENCE FOR EACH QUESTION.

  27. LINED PAPER… What did just learn? In sentence form, write what you just leaned about THE PARTS OF A HURRICANE. Now, ask your neighbor to READ YOUR STATEMENT and then write a meaningful comment about PARTS OF A HURRICANE.

  28. Hurricane Formation In order for a hurricane to form, there must be a supply of warm, moist air for a long period of time.

  29. Formationbegins in the tropic regions (5 to 20 degrees latitude). • Energy comes from condensing water vapor due to unstable humid air rising. • When water vapor condenses to liquid water it releases 540 kcal per mole. • When liquid water freezes to ice, it only lets off 80 kcal per mole.

  30. For a hurricane to form it must begin to rotate (Coriolis Force). • -Hurricanes rotatecounterclockwisein Northern Hemisphere. • -Hurricanes rotate clockwise in Southern Hemisphere.

  31. SCANTRON DAILY QUIZ 69. The center of a hurricane is called the • eye • wall • circle • hole 70. A synonym for subside is • stop • start • restart • continue 71. Which of the following is NOT precipitation? • Rain • Snow • Hail • Smog NOW, WRITE THE CORRECT ANSWERS IN SENTENCE FORM.

  32. SCANTRON DAILY QUIZ 72. Which of the following is most true of the Eye of the Hurricane? • There is no precipitation • There is no wind • The eye is about 12 miles wide • All of the above 73. Which of the following is most true of about the Eye Wall? • Warm air is rising in the wall • The wall has the strongest winds of the hurricane • It is an area of intense convection currents • All of the above 74. Which of the following statements is NOT true? • The Eye of the hurricane is the warmest part of the hurricane. • The feeder bands are spiraling bands of thunderstorms. • The feeder bands of a hurricane have the same appearance as the arms in a Spiral Galaxy. • Most hurricanes occur in the Pacific Ocean near Hawaii. NOW, WRITE THE CORRECT ANSWERS IN SENTENCE FORM.

  33. SCANTRON DAILY QUIZ 75. Where do hurricanes NOT occur? • In the warm ocean waters around the Equator • Near the poles • Between 5 – 20 degrees below the Equator • Between 5 – 20 degrees above the Equator 76. What is the most abundant gas in the atmosphere is • Nitrogen • Oxygen • Argon • Carbon dioxide 77. What is NOT a synonym for Sustained? • Continued • Long term • Slow • Strong NOW, WRITE THE CORRECT ANSWERS IN SENTENCE FORM.

  34. SCANTRON DAILY QUIZ 78. Hurricanes get their energy from warm Gulf of Mexico water, which gets its energy from • The sun • The Atlantic Ocean • The Pacific Ocean • The North American Tectonic Plate 79. Which statement below is FALSE? • Warmer magma rises and eventually is expelled as lava. • A COLD FRONT occurs when a cold air mass collides with warmer air mass causing the warm air to rise. • During the day, after the land becomes warmer than the ocean, air above the land mass rises and the cooler air from the ocean flows onto the land. • Warm air sinks to the ground. 80. What is a temperature inversion? • When the air is thicker • When cold air is above and traps warm air on the ground. • When colder air is closer to the ground • When there is smog in the air • Carbon dioxide NOW, WRITE THE CORRECT ANSWERS IN SENTENCE FORM.

  35. SCANTRON DAILY QUIZ 81. Which of the following statements is NOT true? • In order for a hurricane to form, there must be a supply of warm, moist air for a long period of time. • Hurricane formation begins in the tropic regions • Hurricanes rotate clockwise in the Northern Hemisphere. • The Coriolis Effect causes hurricanes to rotate. 82. Which of the following statements is NOT true? • The Gulf of Mexico provides warm and moist surface air for long periods of time. • Hurricane-type storms in the Pacific Ocean are called Typhoons. • When water condenses (vapor  liquid) it releases loenergy. • All of the above are false 83. What is the SECOND most abundant gas in the atmosphere is • Nitrogen • Oxygen • Argon • Carbon dioxide NOW, WRITE THE CORRECT ANSWERS IN SENTENCE FORM.

  36. LINED PAPER… What did just learn? Choose the 3 most important statements of fact regarding HURRICANES and re- write them in sentence form. Now, ask your neighbor to READ YOUR STATEMENT and then 3 DIFFERENT most important statements of fact regarding HURRICANES.

  37. Hurricane Formation • Three States of Development • Tropical depression– winds do not exceed 61kph (38 mph) • Tropical storm– winds between 61 to 119 kph (38 and 74 mph) • Hurricane – winds between 119 to 300 kph

  38. END OF LECTURE

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