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Earth's Layers Crossword

Across
This layer is the densest layer. There is extreme pressure here. (two words)
This type of crust is thinner, but more dense.
The lower, more solid part of the mantle.
The layer made of slow flowing rock.
This layer is made of solid iron and nickel. (two words)
The rigid layer made up of the crust and upper mantle.
Down
This layer makes up 66% of Earth's mass.
_____ currents take place in the mantle. This causes pieces of crust to move.
The two metals that mainly make up the inner and outer core are Iron and _____.
This type of crust is thicker, but less dense.
This layer has the least mass.
This layer is liquid metal. (two words)
The crust is made up of _____ and minerals.