1) Which layer is the outermost layer?  a) Crust b) Mantle c) Outer core d) Inner Core 2) Which layer makes up most of Earth's mass (about 85%)? a) Crust b) Mantle c) Outer core d) Inner Core 3) Which layer is made up of granite and rock?  a) Crust b) Mantle c) Outer core d) Inner Core 4) Which layer has both the Lithosphere and Asthenosphere within it? a) Crust b) Mantle c) Outer core d) Inner Core 5) Which layer is made up of liquid iron and nickel?  a) Crust b) Mantle c) Outer core d) Inner Core 6) Which layer is the one that has continents and oceans (and is the one we live on?)  a) Crust b) Mantle c) Outer core d) Inner Core 7) Earth moves due to ____________ __________. The heated magma in Earth moves towards the surface, cools, and then sinks.  a) convection currents b) plate tectonics c) the Lithosphere and the Asthenosphere d) iron and nickel 8) Which layer creates the Earth's magnetic field? a) Crust b) Mantle c) Outer Core d) Inner Core 9) Which layer is the innermost layer? a) Crust b) Mantle c) Outer Core d) Inner Core 10) How do Scientists know what Earth is made up of? a) thunderstorms b) earthquakes and volcanic eruptions c) hurricanes d) avalanches

Layers of Earth Review

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