Layers of earth question. (please help)

PurpleDino

PurpleDino

Active member
I have to do a small essay due tomorrow for this one question. "are the layers of the earth in the phase you would expect them to be in?"

my problem is i'm not sure what the question means and didn't have time to ask my teacher about it. please help a fellow NSer out here and help me get this thing done.
 
Pretty sure 'layers' refers to the layers of the subconscious, so describe the Earth's Ego, Superego and Id, in the manner of Freud. Good luck!
 
it isn't really how you think it should be. because the outer core is liquid. It seems like it should be solid, because it's under such immense pressure. Research it before you write it. I'm just trying to remember what I learned in geology.
 
Ok so the layers of the earth are talking about the Crust, Mantle, Outer core and Inner core (there are some other variations locally in the crust etc.... read up on it).

Phase is a reference to whether it is in a liquid, solid or gaseous state.

The guy above who wrote about the core being a liquid, but being very dense (solid state)due to immense pressure is correct. The only solid part is the crust. Also remeber about convection processes, and that gases do also occur.... hydrogen sulphide, etc etc .... might also be good to mention subduction zones at plate boundaries, where solid material descents from the crust to the mantle, thus becoming liquid.... usually resulting in Volcanic activity at the surface do to increased pressure....

 
the core is solid because of the density even though it is the hottest and the mantle is solid but it still flows
 
To be clear, the mantle is called a solid but it actually elastico-plastic. If you want top marks be sure to compare it to silly putty. It can fracture if a force is quickly applied to it, but it flows like a (slow) ocean at other times.
 
I think it means that like would you expect the crust to be where it is and same with the other layers although as much as i love ns i would call a freind for this one haha
 
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