Volcano search

2. the rigid, outermost shell of Earth, made up of the crust and upper mantle.
6. a volcanic mudflow that's a mixture of water and volcanic debris that flows down a volcano's slope.
9. a sudden and violent shaking of the ground, sometimes causing great destruction, as a result of movements within the earth's crust or volcanic action.
12. a type of rock formed when molten rock, called magma or lava, cools and solidifies
15. coming closer together, especially in characteristics or ideas.
16. the thin, dense layer of the Earth's crust that forms the seafloor, primarily composed of basalt rock and created at mid-ocean ridges through the process of seafloor spreading
19. the largest tectonic plate on Earth, covering 40 million square miles
20. a mountain or hill, typically conical, having a crater or vent through which lava, rock fragments, hot vapor, and gas are being or have been erupted from the earth's crust.

1. the powdery residue left after the burning of a substance.
3. a belt around the Pacific Ocean that experiences frequent earthquakes and has many active volcanoes
4. hot molten or semifluid rock erupted from a volcano or fissure, or solid rock resulting from cooling of this.
5. the edge where two or more tectonic plates meet
7. a fast-moving, extremely hot avalanche of volcanic ash, rock, and gas that flows down a volcano's slope.
8. a mountain formed by the eruption of magma from the Earth's crust
10. a semi-solid, mechanically weak layer of Earth's upper mantle
11. the layer of granitic, sedimentary, and metamorphic rocks, which form the continents and the areas of shallow seabed close to their shores
13. an island formed by volcanic activity on the ocean floor.
14. small area or region with a relatively hot temperature in comparison to its surroundings.
17. a geological process that happens when one tectonic plate moves beneath another
18. molten material beneath or within the earth's crust, from which igneous rock is formed