GENERAL EROSION
The wearing down and moving of rock and soil from one place to another...
a. weathering
b. erosion
What is erosion?
Calm water is the major cause of weathering and erosion.
true
false
What is false? (MOVING WATER causes erosion)
Another name for frozen dew.
What is FROST?
Winds can be gentle or strong: yes or no
What is yes?
Soil has 4 parts:
broken _____
hu___
wa___
s___
What is broken rock, humus, water, soil?
Erosion begins with this process:
a. logging
b. weathering
c. moraines
What is weathering?
Run-off (extra water not absorbed) causes loosened ____________ to run into rivers and other bodies of water.
a. moraines
b. soil
What is soil?
Water in the forms of frost, hail, ________, and ice changes the surface of the Earth.
what is snow?
Strong winds off the oceans that move into land can cause these (name both):
What are hurricanes or tsunamis?
Which of the following has remains of dead animals and plants?
humus
clay
silt
micas
What is Humus?
Erosion is usually a ____________ process, but storms and other natural events can speed it up.
a. fast
b. slow
What is slow?
Flowing water may wear away the riverbeds and make a __ - shaped canyon.
What is V?
These are so big and heavy that the ice below presses down hard and even moves the land beneath.
What are glaciers?
Name 3 of the 4 types of wind storms:
Which of the following is a form of soil conservation? (pick 3)
plowing, cooking, crop rotations, mining, terracing, windmills
what is plowing, crop rotations, terracing
Name at least 3 forms of weathering that quickly changes the surface of the Earth:
What are hurricanes, tsunamis, ice storms, avalanches, mudslides, hail storms, etc?
Moving water in the oceans can create large _________ that hit the shore and _____________ that build up near the shore.
What are waves and sandbars?
Glaciers cut out this shape valleys:
What are U-shaped?
Fast flowing water causes this type of erosion:
What is water erosion?
Name the layers of soil:
____soil
____ soil
bed____
What is topsoil, subsoil, bedrock?
Logging, coal mining, and deforestation are examples of erosion done by:
What are humans?
Some rocks, like limestone, may _____________ in water.
a. build up
b. break down (dissolve)
What is break down?
These are created from some of the materials left behind by glaciers... (hint: there is one in Palos Hills that Mrs. P talked about).
What is a moraine?
Particles carried by the _________ wear away rock and change Earth's surface.
What is wind?
Put the following 3 substances in order from largest to smallest:
Clay
Sand
Silt
What is sand, silt, clay?