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In order to go to the center of the Earth, we need to learn about the different layers between us and the core.
We are going to the center in order to get material from the Inner Core that could prove very valuable.
This is a solid layer, it can be 6 or 7 miles thick on the ocean floor. Or 25 miles thick on land. Here you can see that the crust is broken into tectonic plates.
The First Layer is the crust, this is the layer that every human lives on.
These plates cause earthquakes.
The Second Layer is the somewhat solid Mantle.
The hot rock in the mantle has convection currents where hot rock rises from the core and sinks when it is cooler near the crust, taking place of one another.
Mantle is a solid that moves like a liquid. It is also the thickest layer and makes up for almost all of Earth's mass.
This part is 1,400 miles thick, it has the pressure of the mantle and crust, and is over 7,000 degrees Fahrenheit.
The Third Layer is the Outer Core, it is a liquid.
The outer core's convection currents create Earth's magnetic field.
Even though the inner core is hotter than the outer is is a liquid because the pressure and density are so high.
The Fourth and Final Layer is the Inner Layer, it is a solid.
This part is just under 1000 miles, it has lots of pressure due to the many layers above it and is even hotter than the sun.
Thanks for helping us learn about layers of the Earth.
Wish us luck on our adventure!