Weathering and Erosion
By: Emilee Walker
and
Ryan Mooberry
Weathering
• Weathering is the
breaking down of
rocks, soil, and
artificial materials.
Erosion
• Erosion is when soil
and rock are being
moved away from the
Earth’s surface by
wind, water flow, and
transportation.
Pictures of different types of
weathering
Pictures of weathering and erosion
Causes of weathering and erosion
• The Sun’s heat
causes the surface
rocks to expand,
fracture, and moisture
can evaporate.
• When water freezes it
can expand cracks in
rocks and can carry
away small rocks and
dust.
Factors controlling the rate of
erosion
• Weather conditions
• The amount of speed
of water and wind.
• Type of land surface
(examples- mountains
have hard surfaces,
plains have soft top
soil)
Differences of weathering and
erosion
• Weathering involves
two processes that
work together to
decompose rocks.
Both processes occur
in one place. There
not any movement in
weathering. Erosion is
when rock particles
are moved by air,
water, or ice.
Soil erosion
soil erosion is when
soil is removed by
water or wind.
Historic Hopi Buttes area
• Hopi Buttes volcanic
field is a monogenetic
volcanic field.
• It is located on the
Colorado plateau.
Erosion in Washington’s south west
coast
• Jetties cause beaches to grow
and might make them erode.
• Dams on the Columbia River
reduced the sand supply.
• Beach growth is slowing down.
• Beaches that were growing are
now eroding.
• El Nino a phenomenon that
brings storms impacts the
shore line.
• Earth quakes hit Washington’s
coast.
Coastal erosion prevention
• Place breakers in the
water at certain points to
slow down waves.
• You can plant plants to
attract life. If there are
things living there, than
there will be a smaller
chance for erosion.
• Barrier walls can be
placed at the beach to
stop waves.
Wind erosion prevention
• You can use a tillage a
mechanical preparation of
the soil for seeding .
• By rotating soil it keeps
the soil covered avoiding
wind erosion.
• You can strip crop. Strip
cropping is when you
alternate the crops. This
reduces the chance of
wind erosion.
Beach erosion prevention
• You can build
breakwaters and
jetties perpendicular
to the beach. this will
help slow down
erosion by catching
sand on one side of
the jetty as ocean
current flowing along
the shore flows past
the jetty.
Geologic hazards: Landslides
Landslides in the united
states cause about
3.5 billion dollars a
year in damage . It
can kill between 25
and 50 people.
Federal emergency management
agency: landslides and mudflows
• Federal emergency
management:
• Builds emergency kits.
• Avoids building near
slopes.
• Becomes familiar with the
land around them.
• They build deflection
walls to direct mudflows
around the building.
Solution for weathering and erosion
• to prevent erosion on the beach you can
put breakers and barrier walls to stop
waves from eroding the sand.
• To end weathering you can stop water
from getting into rocks and cracking them.
Bibliography
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PICTURES
Kidsgeo.com
Tafoni.com
Geograph.org.uk
Ryen8thgradepage.blogspot.c
om
Science.nationalgeographic.co
m
Questgarden.com
Sciencedirect.com
Thehappyscientist.com
Pubs-usgs.ga
Ecomage.blogspot.com
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INFO
Enwikipedia.org
Answers.com
Wikianswers.com
Geomaps.wr.usgs.gov/parks/m
isc/gweaero.html
Ehow.com
Ecy.wa.gov
Landslides.usgs.gov
Fema.gov
Recources.technet.ic
Thanks For Watching!
THE END