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Log: Feb. 22, 2010

Log: Feb. 22, 2010. Complete and turn in crossword or cryptogram . Test Correction. Write question and correct answer Explain why you answers is incorrect. Log: Feb 22, 2010. Turn in Homework Section 1&2 quiz Friday In your own words define and describe the Earth’s atmosphere. Chapter 15 .

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Log: Feb. 22, 2010

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  1. Log: Feb. 22, 2010 • Complete and turn in crossword or cryptogram

  2. Test Correction • Write question and correct answer • Explain why you answers is incorrect

  3. Log: Feb 22, 2010 Turn in Homework Section 1&2 quiz Friday In your own words define and describe the Earth’s atmosphere.

  4. Chapter 15 Page 448

  5. Composition of Atmosphere Oxygen Nitrogen

  6. Water in Atmosphere • Liquid Water (water droplets) • Solid Water (snow and ice crystals) • Gas Water (water vapor) • Changes in atmosphere cause water to change

  7. Altitude Increases, Air Pressure Decreases Low pressure High pressure

  8. Space

  9. Troposphere • Closes to Earth’s Surface • Densest Layer • Contains 90% of atmospheres total mass • Temperature Vary Greatly

  10. 2nd closes to Earths Surface Gases are layered and don't mix Lower part is extremely cold Upper part warms due to ozone layer Air is thin Stratosphere

  11. Mesosphere • The coldest Layer • The layer in which a lot of meteors burn up while entering the Earth's atmosphere. Here temperature decreases as altitude increase This is an image which shows the Earth and its atmosphere. The mesosphere would be the dark blue edge on the far right hand side of the image.Click on image for full size (55K JPEG)Image courtesy of NASA

  12. Ionosphere • Located at the upper part of mesosphere and Lower thermosphere • Absorbs harmful solar energy • Contains ions which make auroras

  13. Thermosphere • Very High temperature • But feel cold do to less dense particles

  14. Log: 24th • Describe the three physical states of water in the atmosphere. • How des altitude effect air pressure? Explain your answer.

  15. Diagram Page450 • Draw the diagram Layers of Atmosphere • List 4 facts about each layer (try to find things not listed in notes) • Tell if layer is hot or cold? • How it protects the planet? • What prefix means • Be sure to include the ionosphere and ozone layer in the diagram

  16. Log: Feb. 25th • Describe the layers of the atmosphere.

  17. Radiation: Energy transfer by waves • the movement of heat waves through empty space. • Electromagnetic energy, such as light and radio waves, is transported by radiation. • The light that warms your face from the Sun is a form of electromagnetic radiation • When you heat a cup of tea in a microwave oven, the water is heated directly by microwave radiation, that is, by electromagnetic energy. 

  18. Convection: Transfer by Circulation • As things heat up they become less dense and rise • The cool substance will sink and once it is heated it will rise    

  19. Conduction transfer by contact • the transportation of heat through contact • In a solid, When a portion of the solid is heated, the atoms increase their rate of vibration at that point. Air molecules com in contact with object in atmosphere and transfer heat

  20. Page • Open books to 456

  21. Log: March 1, 2010 • What is the Green house effect? • What other planet experiences the Green House Effect?

  22. Greenhouse Effect

  23. Greenhouse Effect • Greenhouse Effect- the warming of the surface and lower atmosphere of the Earth occurs when water vapor, CO2and other gases absorb thermal radiation • Radiation Balance-the balance between the incoming and outgoing energy in our atmosphere

  24. Global Warming • Theoretical thought of a gradual increase in average global climate. • Created by human activity • Burning fossil fuels • deforestation • Global warming is often a huge political topic • Environment pollution • How government uses money

  25. March 3, 2010 • Quietly work on writing labs in your group • Question • Materials • Hypothesis • Procedure • Data: Copy the graph from lab

  26. Log: March 4th • Describe why CO2 is dangerous for our environment and helpful?

  27. Graphing Data Each graph should have a title that describes what the graph is about When graphing data, the independent variable always goes on the X axis, and the dependent variable always goes on the Y axis. . Each axis of the graph should be marked off in equal units and properly labeled. In general, use a line graph when both axes are the set of real numbers. Ex. Time, temperature, height, weight. In general, use a bar graph when one or both of the axes are not the set of real numbers. Ex. Different kinds of roach spray, people.

  28. Conclusion What do my result tell me? Answer you objective Restate your findings as a concluding thought.

  29. Today • Complete • Graphs • Conclusions • Turn everything in with group ( paper clip all papers) Next Work on Directed Reading

  30. Reading check • List two of the Global Winds. • Why was horse latitude bad for horses?

  31. Log: March 9th • All groups meet and make sure all parts of the lab are complete and turned in. • All group members papers should be together and paper clipped • Take out Homework Directed Reading form yesterday

  32. Why air moves • Wind- the movement of air caused by differences in pressure • The greater the pressure difference the faster the wind moves Air rises at equator and sinks at the poles • Air at equator • Hotter • Less dense • Creates an area of Low pressure • Air at the poles • Colder • More dense • Creates an area of High pressure

  33. Pressure Belts

  34. Coriolis Effect The curving of the wind and ocean currents due to the rotation of the Earth Example: Winds traveling North curve to the East

  35. Global Winds • ALL • Produced by convection cells • Named by direction of Movement • Polar Easterlies • Westerlies • Trade winds

  36. Polar Easterlies • 60 ° latitude ( Both Hemi) • Cold air sinking • Carry Arctic air and makes the US cold

  37. Westerlies • 30 ° and 60 ° latitude (both hemi) • Flows toward poles form West to East • Carries Moist Air

  38. Trade Winds • Blow from 30 ° latitude to equator ( both Hemi) • Coriolis Effect causes them to curve • West in NH and East in SH • Named from carrying trade ships

  39. The Doldrums • Where trade winds meet • A low pressure area • Very little wind • Name means ( dull or Sluggish )

  40. The Horse Latitude • 30 ° N and 30 °S • Sinking Air High Pressure = Very dry Area • Winds are weak

  41. Today • On a blank sheet of paper • View figure 4 on page 461 • Draw • all global winds • Convection cells • Latitude lines (add degrees) • Color all arrows

  42. Log: March 10th • Turn in homework • coriolis effect Click Here • Review Atmosphere

  43. Jet Stream • Narrow belts of high speed winds • Located in Upper troposphere Lower Stratosphere • Can be Helpful • Pilots • Meteorologist

  44. Local Winds • Move short distances • Come from any direction • Geographic features cause them by creating temperature differences • Examples • Mountain Breezes • Valley Breeze

  45. Sea and Land

  46. Sea and Land

  47. Mountain and Valley Breezes • Caused by geography • Why does wind tend to blow down from mountains at night?

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