Download Erosion

Physical Process of the Earth
Create a pocket on the left hand
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Title the Pocket
List of Countries
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Glue the following items onto the front page of
your foldable.
Earth’s rigid crust
is made up of 16
enormous plates
called tectonic
plates. These
plates vary in size
and shape.
They also vary in the
amount they move
over the more
flexible layer of the
mantle below them.
Type of plate movement
Landforms Created
Edge of one plate pushes up
over another
Mountains, volcanoes, ocean
trenches
Plate crush together, causing
edges of both places to
crumble and break
Jagged mountain ranges
Plates on ocean floor move
apart
New crust, islands
The reasons the continents are labeled the way they are is
because of continental drift. Each of the continents is on a
different continental plate, therefore as the tectonic plates
move, the continents move with them.
Sudden Changes
Fault: results when the
rocks on one side or both
dies of a crack in Earth’s
crust have been moved by
forces within Earth.
Earthquakes: are caused
by plate movement along
fault lines. Earthquakes
also can be caused by the
force of erupting
volcanoes.
Pacific Plates
Pacific plate lies at the
bottom of the ocean.
Over time, the edges of
these plates were forced
under the edges of the
plates surrounding the
Pacific Ocean.
This plate movement
created a long, narrow
band of volcanoes called
the Ring of Fire. The Ring
of Fire stretches for more
than 24,000 miles, 38,624
km, around the Pacific
Ocean.
Tsunamis
The vibrations of
earthquakes and volcanic
eruptions transfer energy
to the Earth’s surface and
into the ocean’s water.
This transfer of energy can
create enormous waves to
form on the water’s
surface.
Tsunamis create flooding
and wide spread
destruction to coastlines
and coastal economies.
Weathering
Weathering is a process by which Earth’s surface is worn away
by forces such as wind, rain, chemicals, and the movement of
ice and flowing water. Even plants cause weathering. Plant
roots and small seeds can grow into tiny cracks in rock,
gradually splitting the rock apart as the roots expand.
Erosion
Erosion is a process by which weathered bits of tock are
moved elsewhere by water, wind, or ice. Rain and moving
water can erode even the hardest stone over time. When
material is broken down by weathering, it can easily be
carried away by the action of erosion.
Categorize each of the following
events as a slow change or a sudden
change.
Earthquake
Glacier
Tsunami
Plate movement
Volcanic eruption
Wind erosion
Water erosion