The process by which wind, water, ice or
gravity transports (takes) soil and
sediment from one location (place) to
This happens when waves crash
against the shore. Following are some
pictures and descriptions of wave
were once connected to the mainland. Waves have ERODED the
mainland leaving behind columns of rock, standing all alone.
form when wave action continues to erode a sea cave, cutting completely
through the rock.
form when waves cut large holes into weak rock along a sea cliff.
What is “Wave Deposition” you ask? Well…
Waves carry a lot of stuff, including sand, rock
pieces, dead coral and shells. A lot of times, this
material is “deposited,” or left, on a shoreline,
where it forms a beach.
Following are some examples of what waves
have “deposited” on the shore. (“Wave
Beaches are made of different types
of material deposited by waves.
Other types of water erosion…
A river caused this beautiful valley
in Hawaii to form.
The Grand Canyon…ever been there?
The Grand Canyon was formed by moving water.
Have you ever been working outside and had a gusty
wind blow a stack of papers all over the place? If this
has happened to you, then you have seen how wind
erosion works. Wind removes soil, sand, and rock
particles and transports them from one place to another.
the grinding and wearing away of rock when blowing pieces of sand and
rock rub against another rock surface.
Ok, now that you know what wave deposition is,
I bet you can guess what “wind deposition” is
right?.....So…..what is it?
feels like baby powder! Loess forms when wind carries
material far away from it’s source.
form when a mound of wind-deposited sand keeps moving and keeping
it’s shape at the same time, even though it moves.
Ice or Glacial Erosion
Glaciers smooth the land by scraping and
eroding parts of the land that were there before
the ice appeared.
Glaciers also carve out rugged features in the
mountain rock through which they flow.
Following are some example pictures.
Glaciers carved out this rugged landscape in Switzerland.
By the way…
Mrs. Ambrosio took this photo of that same valley in Switzerland
(from the other direction, obviously) from a cable car.
are examples of glacial erosion because glaciers cut into the
back of the mountain.
So…tell me…what is glacial deposition?
happens when rock material is carried and deposited (there’s
that word again) by glaciers.
changes in the earth are
due to slow processes like
EROSION. Some changes are due to
rapid processes, like landslides,
volcanic eruptions and earthquakes!
Following are some picture examples.
happen when rock and soil suddenly move down a slope.
happen when mud or rock and soil mixed with a large amount
of soil flow down a slope or hill.
Mt. St. Helens erupted on May 1, 1981. It definitely changed
the land in the area.
How do you think the eruption of Mt. St. Helens affected the