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Structure Of
The Earth
- Inner Core
- The inner core is in the centre and is the
hottest part of the Earth. It is solid and
made up of iron and nickel with
temperatures of up to 5,500°C.
- The inner core is in the centre and is the
hottest part of the Earth. It is solid and
made up of iron and nickel with
temperatures of up to 5,500°C.
- Outer Core
- The outer core is the layer
surrounding the inner core. It is a
liquid layer, also made up of iron and
nickel. It is still extremely hot, with
temperatures similar to the inner
core.
- The outer core is the layer
surrounding the inner core. It is a
liquid layer, also made up of iron and
nickel. It is still extremely hot, with
temperatures similar to the inner
core.
- Mantle
- The mantle is the widest section of the
Earth. It has a thickness of 2,900 km. The
mantle is made up of semi-molten rock
called magma. In the upper parts of the
mantle the rock is hard, but lower
down the rock is soft and beginning to
melt.
- The mantle is the widest section of the
Earth. It has a thickness of 2,900 km. The
mantle is made up of semi-molten rock
called magma. In the upper parts of the
mantle the rock is hard, but lower
down the rock is soft and beginning to
melt.
- Crust
- he crust is the outer
layer of the earth. It is a
thin layer between 0-60
km thick. The crust is the solid rock layer
which we live on.
- he crust is the outer
layer of the earth. It is a
thin layer between 0-60
km thick. The crust is the solid rock layer
which we live on.
- Types Of Crust
- Continentail crust - Carries land
- Oceanic Crust - Carries Water
- Continentail crust - Carries land
- Plate Movement
- Plates move due to convection currents this is because of the core heating up the mantle. They
move in either direction due to the covection current. Therefore plates are pulled or pushed
together. The process is through rising and falling magma it rises when hot and falls when cold.
This process is always happening. The Tectonic plates can move a few CM's per year
- Plates move due to convection currents this is because of the core heating up the mantle. They
move in either direction due to the covection current. Therefore plates are pulled or pushed
together. The process is through rising and falling magma it rises when hot and falls when cold.
This process is always happening. The Tectonic plates can move a few CM's per year
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