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The Earth ’ s Atmosphere . re-teaching assignment. The Earth is surrounded by a “blanket” of air called the atmosphere. http://www.lunaroutpost.com/gallery/earth/pages/earth_full_hires%20copy.htm. The Earth ’ s Atmosphere is a mixture of gases:.

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the earth s atmosphere

The Earth’s Atmosphere

re-teaching assignment

the earth is surrounded by a blanket of air called the atmosphere
The Earth is surrounded by a “blanket” of air called the atmosphere.

http://www.lunaroutpost.com/gallery/earth/pages/earth_full_hires%20copy.htm

the earth s atmosphere is a mixture of gases
The Earth’s Atmosphere is a mixture of gases:

http://webusers.astro.umn.edu/~john/Ast1001/air/atmos-compos.jpg

what are some natural events that afffect the earth s atmosphere
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

what keeps the atmosphere so close to the earth
What keeps the atmosphere so close to the earth???

GRAVITY!

http://www.cs.dartmouth.edu/farid/sciencekids/gravity2.jpg

even the international space station flies within the earth s atmosphere
Even the International Space Station flies within the Earth’s atmosphere!

http://nssdc.gsfc.nasa.gov/image/spacecraft/iss.jpg

the atmosphere has five basic layers
The atmosphere has five basic layers.

http://www.theozonehole.com/atmosphere.gif

the layers are determined by changes in temperature
THE LAYERS ARE DETERMINED BY CHANGES IN TEMPERATURE

http://www.windows2universe.org/earth/Atmosphere/layers_activity_print.html

temperatures in the atmosphere
Temperatures in the Atmosphere

Why does the graph zigzag back and forth?

we live in the lowest layer the troposphere
We live in the lowest layer, the troposphere.

http://www.fas.org/irp/imint/docs/rst/Sect14/atmosphere.jpg

most of earth s weather takes place in the troposphere
Most of Earth’s weather takes place in the troposphere.

http://images.worldofstock.com/slides/TRA1094.jpg

about ten miles up is the tropo pause where the troposphere ends
About ten miles up is the Tropo-pause, where the troposphere ends.

Most jet planes can fly close to or just above the tropopause.

slide14
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

after the troposphere comes the stratosphere
After the troposphere comes the stratosphere.

http://www.greenfacts.org/glossary/images/stratosphere-troposphere.jpg

high winds in the statosphere are called the jet stream
High winds in the statosphere are called the Jet Stream.

www.accuweather.com/www/nyc/jetstream.gif

slide17
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

weather balloons explore the stratosphere
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

in the stratosphere spy planes
In the Stratosphere… spy planes!

http://retrothing.typepad.com/photos/uncategorized/2007/12/21/sr71blackbird.jpg

slide20
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.
m esosphere where the m eteors burn
Mesosphere- where the meteors burn.

hektor.umcs.lublin.pl/.../collection/nantan.jpg

http://www.meteorites.homepage.t-online.de/jpg/cerny.jpg

slide23
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

if it weren t for the atmosphere
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

meteor impact in the yucatan peninsula mexico this possibly killed off the dinosaurs
Meteor Impact in the Yucatan Peninsula, Mexico. This possibly killed off the dinosaurs.

http://www.worth1000.com/entries/111000/111117fKmj_w.jpg

smaller impacts do occur but are rare
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

thermosphere is made of the ionosphere the exosphere
THERMOSPHERE IS MADE OF THE IONOSPHERE & THE EXOSPHERE.

http://www.arsc.edu/science/ionosphere.html

ionosphere where solar particles are ionized in the upper atmosphere
Ionosphere- Where solar particles are ionized in the upper atmosphere.

http://www.arsc.edu/science/ionosphere.html

ionosphere reflects radio waves
Ionosphere reflects radio waves

apollo.lsc.vsc.edu/.../ionosphere_layers.psd.gif

the aurora borealis n austrialis s
The Aurora- Borealis (N)/Austrialis (S)

http://shelp.chess.cornell.edu/multimedia/aurora/09_07_02/35mmlights2_9_7_02.jpg

the exosphere is the outermost layer after that the area we call outer space begins
The Exosphere is the outermost layer. After that the area we call “outer space” begins.

atschool.eduweb.co.uk/.../gfx/exosphere.jpg

things found in the exosphere
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

satellites orbit earth in the exosphere
Satellites orbit Earth in the exosphere.

http://www.wmo.ch/web/www/images/GOS/Figure%20II-10%20Satellites.jpg

the moon with thousands of impact craters
The moon, with thousands of impact craters.

http://www.astrosurf.com/cidadao/moon_99_02_23_south.jpg

slide37

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/

what is air pressure
What is Air Pressure?

Air pressure is the weight of the atmosphere pressing down on an area of the earth.

http://dogfoose.com/infotoons/

pressure changes with altitude the higher altitude the lower the air pressure
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