Chemically, rocks
are broken down as
they are dissolved by
water or acid
Weathering
weathering
Broken down mechanically
weathering
Mechanical
weathering
Erosion By
Gravity
Mechanically rocks are
broken down by
burrowing animals, ice
wedging, and plant
roots
weathering
The steeper the slope
the better chance for
this type of erosion
Erosion by gravity
Chemical
weathering
With time, creep
can cause tree
trunks to bend
Erosion by gravity
rockfalls
Erosion by gravity
Erosion by
Water
Mass Movement
including slump,
landslides and
mudflows are all
examples
Erosion by gravity
At the mouth of a river
fertile soil is found
Deltas form when this
because sediment and
type of erosion
nutrients are deposited
deposits sediment
there through this type
Erosion by water
of Erosion
Erosion by water
Georgia is most affected by Old rivers run slow and
deposit lots of sediments
this type of Erosion
mature rivers have slower
Erosion by water
water and meander with
many curves
Erosion by water
young rivers move fast with
waterfalls
Erosion by water
Grand Canyon took millions of years to Form by
this type of Erosion
Small channels down a
slope created by rain
are called Rills. A Gully
is a rill that gets deeper
and wider.
Erosion by water
A V-shaped valley is
caused when rivers or
streams erode the
bottom of a channel
Erosion by water
Erosion by water
Erosion by ICE
A U-shaped valley
Plucking leaves gouges
eroded on the bottom
in rock as Glaciers
and sides of a channel
move sediments in
is caused by this type of this type of Erosion
erosion
Erosion by ice
Erosion by ice
Striations are grooves in
rock caused by this type of
Erosion
Erosion by ice
3 glaciers eroded
this horn like a pencil sharpener
Erosion by ice
Erosion by
wind
Created through
deposition of sand by this type erosion
Erosion by wind
Deflation occurs when Abrasion is when rock
smaller sediments such
is naturally
as sand and silt are
sandblasted
blown away leaving
Erosion by wind
larger rocks and pebbles
Erosion by wind
Windbreaks help to conserve soil from
this type of Erosion
Erosion by wind