1 / 19

Aim: How is our atmosphere structured?

Aim: How is our atmosphere structured?. Do Now: Watch the video. Atmosphere : - the layers of gas that surrounding Earth. - Atmospheric pressure is the weight of the air molecules above you. I. Changes in Pressure. - measured with a barometer (units = millibars). ESRT Page 13.

lhoman
Download Presentation

Aim: How is our atmosphere structured?

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Aim:How is our atmosphere structured? Do Now: Watch the video

  2. Atmosphere: - the layers of gas that surrounding Earth.

  3. - Atmosphericpressure is the weight of the air molecules above you. I. Changes in Pressure - measured with a barometer (units = millibars)

  4. ESRT Page 13 Convert the following pressures: 1) 30.00 inches Hg = ________ mb 2) 998.0 mb = ________ inches Hg 3) 968.0 inches Hg = __________ mb 1016.0 29.70 28.58

  5. Where would you expect to find the most pressure? Where would you expect to find the least pressure? - The atmosphere thins as you travel away from Earth’s surface. (less molecules) At sea level (1 atm) On a mountain peak WHY? WHY? • At sea level, there is 1 atmof pressure. • (this is all the gas molecules are above your head weighing down on you)

  6. Pressure is highest at sea level = 1.0 atm. • As altitude increases air pressure decreases. • At the top of the Stratosphere the pressure comes close to 0 atm. Why does the pressure approach zero as altitude increases? -A decrease in gas molecules Sea level ESRT page 14

  7. ESRT p. 13 • a measure of the average kinetic energy in a substance. (particle movement) II. Changes in Temperature: - Units include; • Celsius • Fahrenheit • Kelvin • Convert the following temperatures: • 500F = ______ 0C or _______ K • 600C = ______ 0F or _______ K 10 283 140 333

  8. - Changes in temperatures help indicate the different layers of the atmosphere. Describe the temperature change with altitude in the: Troposphere: Stratosphere: INDIRECT DIRECT ESRT page 14

  9. III. Layers of the Atmosphere

  10. * Between each layer is a boundary that separates the layers called a “pause”. What features do you notice take place in the different layers of the atmosphere?

  11. What is the lowest temperature in the Troposphere? -550C • Troposphere: (where we live!) • 90% of all gases • all clouds and weather • Temp. decreases as altitude increases Describe the relationship between temperature and altitude in the Troposphere.

  12. What is the highest temperature in the stratosphere? -00C 2. Stratosphere: • Contains the Ozone Layer (blocks dangerous ultraviolet radiation). • Temperature increases as altitude increases. Describe the relationship between temperature and altitude in the Stratosphere.

  13. Contains Jet Streams; which are high speed winds that influence our daily weather.

  14. 3. Mesosphere • Meteoroids burn up due to friction with air particles forming “shooting stars”. • Temp. decreases as altitude increases. Describe the relationship between temperature and altitude in the Mespsphere. At what altitude does the Mesosphere begin? - 30mi or 50km

  15. Describe the relationship between temperature and altitude in the Thermosphere. 4.Thermosphere • Temperature increases as altitude increases. • Contains the ionosphere (charged particles) creating the “Aurora’s” or The Northern & Southern Lights

  16. Aurora (Northern Lights)

  17. Contains Earth’s Satellites • Last layer before space

  18. ESRT page 14

  19. Closure: Complete the “Layers of the Atmosphere” worksheet by first filling in the names of each layer on the diagram. To help you, between Earth and the first line should be labeled the Troposphere. After filling in each layers name, write/draw all the information about each layer that we discussed in class for each layer. You may use your IPad to find further information about each layer and what might exists there. There are colored pencils in the back for you to use as well.

More Related