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10998933
Earth and Space Sciences Mind Map
Descripción
A mind map of everything I've learnt thus far in the unit to be used for revision :) Will be updated every week or so.
Sin etiquetas
science
geology
earth and space
earth
earth's structure
plate tectonics
science
geology
Mapa Mental por
Annalise Watson
, actualizado hace más de 1 año
Más
Menos
Creado por
Annalise Watson
hace casi 7 años
21
0
0
Resumen del Recurso
Earth and Space Sciences Mind Map
Earth's Structure
Made of 4 layers
The Crust
The outer most layer of the Earth, between 10-80 km thick
The Mantle
The Upper Mantle
A thick layer of rock that supports the Earth's weight
The rock deeper down is softer and closer to melting. If it does melt, it can rise to the surface and create volcanoes
Most of Earth's rocks are found here
The Lower Mantle
Around 2900 km thick
Made of very hot rock that has melted (Magma) and has the consistency of thick toffee
The Inner Core
Is at the centre of the Earth and is completely solid due to the pressure being placed on it
Is mainly made of Iron and Nickel
Is around the size of the moon
The Outer Core
Completely liquid and almost as thick as the Mantle
A mixture of different Metals: mostly Iron and Nickel, which are magnetic
The Earth's crust
Two types of crust
Continental
10-70 km thick
This crust is buoyant and less dense than Oceanic crust
Oceanic
Around 7 km thick
Is more dense than Continental crust and is 'younger'
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