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Earth Layers

By: Mya George

QuestionAnswer
What are the 5 main layers of the Earth? The inner and outer core, upper and lower mantle, and the crust
What causes the iron and nickel in the inner core to be solid? Pressure
In what layer of the earth do convection currents occur? Mantle
Which type of crust is less dense? Oceanic or continental? Continental
What are the three mechanical layers? Lithosphere, asthenosphere, and mesosphere
Which layer(s) of the earth are composed of iron and/or nickel? Inner core, outer core, and mantle
What part of the mantle is malleable? Upper or lower? Lower
What layer of the earth vary in thickness from 60km to 5 km thick? Crust
What is another name for lithosphere? Tectonic plates
_______ is a plastic layer where tectonic plates (lithosphere)floats. *Fill in the blank* Asthenosphere
_______ is the outermost rigid layer. *Fill in the blank* Lithosphere
What state of matter is the mesosphere? Mesosphere
What is the thickest layer of the earth? Mantle
What is the thinnest layer of the earth? Crust
What layer of the earth makes up the very center of the earth? The inner core
What part of the mantle is rigid and brittle? Upper or lower? Upper
How many miles thick is the outer core? 1400 miles thick.
Why is the outer core liquid but the inner core is solid? Because the outer core is not subjected to as much pressure as the inner core.
True or false? The mantle is contains iron and nickel only. False
True or false? Being that the earth's interior is made mostly of rock, it is always solid. Flase
Created by: hcps-georgema
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