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



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