Volcano

4. The point where an earthquake starts
5. an opening in a planet or moon's crust through which molten rock and gases trapped under the surface erupt, often forming a hill or mountain.
8. a portion of the Earth's mantle that flows like molten plastic despite being solid.
12. a hypothetical landmass in the Northern Hemisphere near the end of the Paleozoic Era:
13. a supercontinent that incorporated almost all the landmasses on Earth.
15. an area of the Earth's mantle from which hot plumes rise upward, forming volcanoes on the overlying crust.
16. a large area of land that is believed to have existed long ago and to have consisted of the lands of the Southern Hemisphere and India.
17. the mostly solid bulk of Earth's interior.
18. the location directly above it on the surface of the earth
20. molten rock ejected by volcanoes in the form of a liquid.

1. a large natural elevation of the earth's surface rising abruptly from the surrounding level; a large steep hill.
2. The innermost part of Earth.
3. the process of transferring and immediate discharge of electrical energy to the earth directly through a low resistance wire.
6. the Earth's rigid, rocky outer layer.
7. a type of earth movement resulting from the horizontal compression of rock layers by internal forces of the earth along plate boundaries.
9. an explosion of steam and lava from a volcano.
10. a crack in the earth's crust resulting from the displacement of one side with respect to the other.
11. a mixture of molten and semi-molten rock found beneath the surface of the Earth.
14. a large depression formed when a volcano erupts and collapses
19. the outermost shell of a terrestrial planet.