Layers of the Earth
Enter the number from the column to the left into the text box next to the appropriate word in the right-hand column.
1. the layer of gases surrounding the surface of the Earth outer core
2. the theory explaining the movement of tectonic plates mantle
3. a large piece of the Earth's crust and upper mantle that slowly moves due to geological pressures crust
4. the massive layer between the outer core and the crust inner core
5. the water on or near the surface of the Earth tectonic plate
6. the molten iron and nickel layer immediately surrounding the inner core hydrosphere
7. a crack in the Earth's crust along which rocks may shift; primarily (but not exclusively) found at the boundaries between tectonic plates fault
8. a naturally occurring vent through which gases, volcanic ash and lava are emitted from the Earth's crust volcano
9. the relatively thin, brittle layer of rock at the surface of the Earth plate tectonics
10. the solid iron and nickel mass at the center of the Earth atmosphere



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