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Layers of the Earth

Earth Layers

QuestionAnswer
Is the interior of the Earth always solid? No, even though most of it is made from rocks, it is not always solid.
What increases as you go further down into the Earth's layers? Temperature and Pressure
What causes the inner core to be a solid, when there are extreme temperatures down there? The pressure from the above layers causes the mineral iron and nickel, that are in the core, to be solid.
Which layer is the only liquid layer? The Outer core
What keeps the outer core a liquid? Extreme temperatures and pressure keeps it a liquid. It is not subjected to as much pressure as the inner core.
Which layer is a solid, but acts like a liquid under pressure and heat? The mantle
What moves through the mantle, and causes hot material from the core to rise up and the cool material near the crust to sink? Convection Currents
Which is less dense, Oceanic Crust or Continental Crust? Continental Crust
Where does the Lithosphere lay? It is between the lower crust and the upper mantle.
What mechanical layer is between the upper and lower mantle? The Asthenosphere.
Where is the Mesosphere located? It is located in the liquid like lower part of the mantle.
How many kilometers is the continental crust deep? It is 10 to 7okm deep.
Which is oceanic crust 5-7km deep or 10-100km deep? It is 5-7km deep.
Which mechanical layer is 10-200km deep? The Lithosphere
What causes seafloor spreading? It happens when two plates move apart.
What is a subduction zone? It happens when one plates moves beneath another plate.
Created by: lashayparker
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