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The Earth ’ s Atmosphere

The Earth ’ s Atmosphere

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The Earth ’ s Atmosphere

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  1. The Earth’s Atmosphere re-teaching assignment

  2. The Earth is surrounded by a “blanket” of air called the atmosphere. http://www.lunaroutpost.com/gallery/earth/pages/earth_full_hires%20copy.htm

  3. The Earth’s Atmosphere is a mixture of gases: http://webusers.astro.umn.edu/~john/Ast1001/air/atmos-compos.jpg

  4. What are some natural events that afffect the earth’s atmosphere? Forest fires Volcanic ash http://upload.wikimedia.org/wikipedia/en/thumb/4/49/Wildfire3.jpg/240px-Wildfire3.jpg http://www.windows2universe.org/earth/interior/ash.html

  5. What keeps the atmosphere so close to the earth??? GRAVITY! http://www.cs.dartmouth.edu/farid/sciencekids/gravity2.jpg

  6. Although it seems thin, the atmosphere is ~500 miles thick!

  7. Even the International Space Station flies within the Earth’s atmosphere! http://nssdc.gsfc.nasa.gov/image/spacecraft/iss.jpg

  8. The atmosphere has five basic layers. http://www.theozonehole.com/atmosphere.gif

  9. THE LAYERS ARE DETERMINED BY CHANGES IN TEMPERATURE http://www.windows2universe.org/earth/Atmosphere/layers_activity_print.html

  10. Temperatures in the Atmosphere Why does the graph zigzag back and forth?

  11. We live in the lowest layer, the troposphere. http://www.fas.org/irp/imint/docs/rst/Sect14/atmosphere.jpg

  12. Most of Earth’s weather takes place in the troposphere. http://images.worldofstock.com/slides/TRA1094.jpg

  13. About ten miles up is the Tropo-pause, where the troposphere ends. Most jet planes can fly close to or just above the tropopause.

  14. Between each atmospheric layer, we have a “pause” or break. These are arbitrary lines- and not real breaks. http://www.epa.gov/apti/course422/images/fig-1.gif

  15. After the troposphere comes the stratosphere. http://www.greenfacts.org/glossary/images/stratosphere-troposphere.jpg

  16. High winds in the statosphere are called the Jet Stream. www.accuweather.com/www/nyc/jetstream.gif

  17. The Ozone layer (O3) can be found in the stratosphere. It protects us from harmful UV radiation from the sun. http://veimages.gsfc.nasa.gov/138/ozone_hole_large.jpg http://www.okiu.ac.jp/Language/contest/02/12/ozone.gif

  18. Weather Balloons explore the stratosphere. http://www.ssec.wisc.edu/sose/wvi/images/scen3.jpg http://www.discover.uottawa.ca/~aelsawah/GNG1101/LAB2_files/image004.jpg

  19. In the Stratosphere… spy planes! http://retrothing.typepad.com/photos/uncategorized/2007/12/21/sr71blackbird.jpg

  20. Believe it or not, 99% of all the gases that surround the earth are found in the first two layers we’ve seen so far.

  21. Mesosphere is the layer In the Middle!

  22. Mesosphere- where the meteors burn. hektor.umcs.lublin.pl/.../collection/nantan.jpg http://www.meteorites.homepage.t-online.de/jpg/cerny.jpg

  23. Millions of meteors burn up in our atmosphere each year. If they hit the ground, they are called a meteorite. Perseid Meteor Shower http://www.montaukobservatory.com/Observer/meteor-nasa.gif

  24. If it weren’t for the atmosphere… (Barringer Crater) in Arizona, some 38 miles east of Flagstaff, http://woodshole.er.usgs.gov/epubs/bolide/images/meteorcrater.jpg

  25. Meteor Impact in the Yucatan Peninsula, Mexico. This possibly killed off the dinosaurs. http://www.worth1000.com/entries/111000/111117fKmj_w.jpg

  26. Smaller impacts do occur but are rare. Peru, South America Peeksgill, New York http://static.howstuffworks.com/gif/peru-meteor-1.jpg http://apod.nasa.gov/apod/image/0611/peekskill_thomas.jpg

  27. THERMOSPHERE IS MADE OF THE IONOSPHERE & THE EXOSPHERE. http://www.arsc.edu/science/ionosphere.html

  28. Ionosphere- Where solar particles are ionized in the upper atmosphere. http://www.arsc.edu/science/ionosphere.html

  29. Ionosphere reflects radio waves apollo.lsc.vsc.edu/.../ionosphere_layers.psd.gif

  30. The Aurora- Borealis (N)/Austrialis (S) http://shelp.chess.cornell.edu/multimedia/aurora/09_07_02/35mmlights2_9_7_02.jpg

  31. The Exosphere is the outermost layer. After that the area we call “outer space” begins. atschool.eduweb.co.uk/.../gfx/exosphere.jpg

  32. Temperatures in the Exosphere

  33. Things found in the Exosphere. http://nssdc.gsfc.nasa.gov/image/spacecraft/iss.jpg http://www.boeing.com/defense-space/space/hsfe_shuttle/images/nasa-sys_shuttle_sts071-741_200X250.jpg

  34. Satellites orbit Earth in the exosphere. http://www.wmo.ch/web/www/images/GOS/Figure%20II-10%20Satellites.jpg

  35. If it weren’t for the atmosphere, our earth would look like…

  36. The moon, with thousands of impact craters. http://www.astrosurf.com/cidadao/moon_99_02_23_south.jpg

  37. Because the moon has less gravity and much higher temperatures than the earth, its gases get “excited” or very energetic, and are lost to space. http://www.abc.net.au/science/features/lunaeclipse2007/

  38. What is Air Pressure? Air pressure is the weight of the atmosphere pressing down on an area of the earth. http://dogfoose.com/infotoons/

  39. Pressure changes with altitude – the higher altitude, the lower the air pressure. htt://images.google.com/imgres?imgurl=http://www.physicalgeography.net/fundamentals/images/pressure_altitude.jpg&imgrefurl=http://www.physicalgeography.net/fundamentals/7d.html&usg=__2bKRE46nD8PHInoiyOVgt1Lv2ok=&h=580&w=491&sz=59&hl=en&start=5&tbnid=qFc-E7U_YbFDyM:&tbnh=134&tbnw=113&prev=/images%3Fq%3Dair%2Bpressure%26gbv%3D2%26hl%3Den%26safe%3Dactivep

  40. Credit:Mr. Fontaine, Mercer Middle School