Tectonic Plates
by Haley Coffman
Layers the Make the Earths Layers
The outer layer you see with the continental crusts and oceanic ridges, is the crust. Its the layer we walk, run, sleep, swim, everything on. the next layer you see is the upper mantel. The upper mantel is just made up of rock. Between the upper mantel and the lower mantel, is something called the middle mantel. The middle mantel is a little weird. I say that because it is made up of both liquid and solid matter. Its technically called something like plasticity. Meaning the more pressure you put on it, the harder it gets. Also with in the middle mantel there are convection currents that are constantly moving. Next is the lower mantel which is made up of rock like the upper mantel. The outer core is made up of iron liquid and so is the inner core. The inner core is the inner most layer of the earth, also known as the middle. It's the hottest part of the Earth