Earth’s System
• Everything in Earth's
system can be placed
into one of four major
subsystems: land,
water, living things, or
air.
• These four
subsystems are
called "spheres."
Atmosphere
What is it?
DEFINITION:
The gaseous layer that surrounds the Earth.
Hydrosphere
http://www.cmmacs.ernet.in/~himesh/Hydrosphere%20Components.gif
What is it?
DEFINITION:
All the water on the Earth.
( solid, liquid and gas)
Hydrosphere Distribution
Lithosphere
What is it?
DEFINITION:
The Earth’s solid surface which includes
the continental and oceanic crust and the
upper mantle.
Biosphere
What is it?
DEFINITION:
All life on Earth and where it exists.
• In addition to the four spheres mentioned,
there is one more added and it is due to
the presence of our worldly presence.
Anthrosphere
What is it?
DEFINITION:
Everything we build/human construction.
Some Spheres for Fun
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Magnetosphere or geomagnetosphere is in
space, protects us from solar winds and
suns radiation
Asthenosphere is the nonrigid layer below
the lithosphere, convection currents within
move the tectonic plates
Geosphere is the densest parts of Earth,
which consist mostly of rock and a
heterogenous mixture. The dense
geosphere is also subdivided into the crust,
mantle, and core.
Pedosphere is the outermost layer of the
Earth that is composed of soil and subject to
soil formation processes. It exists at the
interface of the lithosphere, atmosphere,
hydrosphere and biosphere.
Ionosphere or plasmasphere is a sub sphere
of the atmosphere, outermost part
Cryosphere is the portions of the Earth’s
surface where water is in solid form;
including sea ice, lake ice, river ice, snow
cover, glaciers, ice caps and ice sheets,
and frozen ground (which includes
permafrost).
Magnetosphere
Bibliography
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http://www.cet.edu/ete/ESS/ESSspheres.html
http://www.cotf.edu/ete/ESS/ESSmain.html
http://www.cotf.edu/ete/ESS/ESSspheres.html
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http://kdhellner.tripod.com/sitebuildercontent/sitebuilderpictures/.pond/protist.jpg.w300h223.jpg
http://lamington.nrsm.uq.edu.au/images/fungi/fungi068.JPG
http://ga.water.usgs.gov/edu/graphics/earthwheredistribution.gif
http://science.nasa.gov/ssl/pad/sppb/edu/magnetosphere/images/mag_sketch.gif
www.eduweb.com/.../images/bargraph.gif
www.sacsplash.org/cimages/bacteria.jpg