Download Surfaces and features of the Earth 4th.notebook

Surfaces and features of the Earth 4th.notebook
October 24, 2014
Surfaces of the Earth
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I understand what causes the different Earth surfaces
I understand the various types of Earth Landforms
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Surfaces and features of the Earth 4th.notebook
October 24, 2014
What Causes the surfaces of the Earth?
Plate tectonics...
The earth has 3 layers ... Crust
Mantle
Core
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1. Thinnest
Thinnest layer
layer made
made of
of solid
solid rock
rock
1.
2. Divided
Divided into
into continental
continental crust
crust and
and oceanic
oceanic
2.
crust
crust
3. Divided
Divided in
in large
large plates
plates that
that shift
shift and
and move
move due
due
3.
to plate
plate tectonics…
tectonics…
to
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Surfaces and features of the Earth 4th.notebook
October 24, 2014
Plate tectonics is the theory that the Earth's crust is broken into huge plates that shift and move on the molten layers below the crust.
Where two plates come together = fault zones
Along these zones mountains, volcanoes, and earthquakes occur.
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Surfaces and features of the Earth 4th.notebook
mantle
crust
1. Thinnest layer made of solid rock
2. Has large plates that shift and moved due to plate tectonics
3. Divided into oceanic/
continental crust
October 24, 2014
1. Thickest layer made of hot "silly puddy"
A. All layers of the Earth
B.All are moving
2 .No plates. It is a hot mass that is always on the move
C.Forms of
rock
3. No has no real layers
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Surfaces and features of the Earth 4th.notebook
October 24, 2014
I understand various landforms
found on the Earth...
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Continental Landforms
Plains ­­­ The flattest kind of landform...vast areas without the presence of mountains or large hills
*** Interior plains of North America are between
Rocky and Appalachian Mountains. Oct 13­10:10 AM
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Surfaces and features of the Earth 4th.notebook
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Plateau...
Flat land like a plain that is higher than the surrounding areas... "Mother nature's TABLE TOP"
Pressure pushing upwards caused these large flat mountain areas... Plate tectonics
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Surfaces and features of the Earth 4th.notebook
Plains
1. plains are flattest land no mountains or large hills
October 24, 2014
Plateau A. Flat surfaces
1.Flat plain areas that are on the top of a mountain
B. landforms
C. Both made by plate tectonics
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Surfaces and features of the Earth 4th.notebook
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Valleys...
Gently sloped wall...
U shaped
Made by glaciers..."Mother Nature's Bull Dozier"
Between Mountains
Bottoms are large flatlands that have fertile soil
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Surfaces and features of the Earth 4th.notebook
October 24, 2014
Canyons
Steeped walled
V shaped
Made by slow process that takes millions of year
Causes by river eroding and weathering
Can be a " rift" between two mountains
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Surfaces and features of the Earth 4th.notebook
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Dunes
Made of sand...
Caused by wind/erosion...
Slow process...
found by deserts/ocean...
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Surfaces and features of the Earth 4th.notebook
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Hills...
generally lower than 1000 ft tall rounded and smooth side
mountains can be weathered into hills
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Surfaces and features of the Earth 4th.notebook
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Oct 13­10:10 AM
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Surfaces and features of the Earth 4th.notebook
October 24, 2014
Mountains
uplifted crust/plates pushed together...plate tectonics
taller than 1500 feet...
slow process...
pointed tops and peaks...
Volcanoes
magma pushes up the crust
Active or dormant
Many found in oceans and they form island
Eruption is a fast process
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Surfaces and features of the Earth 4th.notebook
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Glaciers...
Massive sheets of ice move slowly...a foot a year
Ice accumulates due to freeing and thawing cycle
when enough pressure occurs (becomes heavy) the glacier begins to move...Mother Nature's bulldozer Oct 22­11:31 AM
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