Layers of the Earth
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How many layers of Earth are there related to its composition?
3
What does the word composition mean?
What something is made of
Related to its composition, what metal is the most common metal in the core?
Iron
What type of crust is more dense? How do you know?
Oceanic crust because its further down
Related to Earth’s composition, which layer is the most dense?
Core
Three of the total amount of layers make up the mantle, What are the three layers that make up the mantle?
Asthenosphere, Lithosphere, Mesosphere
Related to Earth’s structure there are how many layers?
5
What does structure mean?
If it is a solid or liquid
Is the lithosphere solid or liquid?
Solid
Is the asthenosphere solid or liquid?
solid
Is the inner core solid or liquid?
solid
Is the mesosphere a solid or liquid?
solid
Is the outer core a solid or liquid?
liquid
What do you notice about the structure of the layers?
They go together
What are two things that increase as you go towards the center of the Earth?
Pressure and temperature
The hottest layer is the inner core, yet it is a solid, why is this?
Because of the intense pressure
Related to Earth’s structure, what layer was discovered by studying seismic waves (earthquakes)?
Outer core
What is created due to the fact that the composition of the core is metal and the structure is not the same throughout?
Magnetic Field
What is happening to the size of Earth? Why is this happening?
It is shrinking because it is getting cooler.
Name all the mechanical layers (physical).
Inner core, outer core, mesosphere, aesthenosphere, lithosphere
Name all the compositional layers (chemical).
Core, mantle, oceanic and continental crust
What is the outermost layer related to structure?
Lithosphere
What is the liquid part of the mantle?
Magma
The lithosphere is broken up into what?
Tectonic Plates