Across
- 6. Crust= the relatively thick part of the earth's crust that forms the large landmasses. It is generally older and more complex than the oceanic crust.
- 8. the powdery residue left after the burning of a substance.
- 10. the upper layer of the earth's mantle, below the lithosphere, in which there is relatively low resistance to plastic flow and convection is thought to occur.
- 13. hot molten or semifluid rock erupted from a volcano or fissure, or solid rock resulting from cooling of this.
- 14. the rigid outer part of the earth, consisting of the crust and upper mantle.
- 15. Island= a large volcano that has erupted on the seafloor and has emerged above sea level, occurring in ocean basins or on ocean ridges.
- 16. Rock= form when hot, molten rock crystallizes and solidifies.
- 17. a destructive mudflow on the slopes of a volcano.
- 19. Moutain= A volcano is a vent or opening through which magma, ash, gases, and water vapor are ejected out.
Down
- 1. the sideways and downward movement of the edge of a plate of the earth's crust into the mantle beneath another plate.
- 2. relating to, consisting of, or denoting fragments of rock erupted by a volcano.
- 3. Boundary= The location where two plates meet
- 4. 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.
- 5. a sudden and violent shaking of the ground, sometimes causing great destruction, because of movements within the earth's crust or volcanic action.
- 6. When two plates come together, it is known as a convergent bounder
- 7. Crust= the relatively thin part of the earth's crust which underlies the ocean basins. It is geologically young compared with the continental crust and consists of basaltic rock overlain by sediments.
- 9. hot fluid or semifluid material below or within the earth's crust from which lava and other igneous rock is formed on cooling.
- 11. spot=a small area or region with a relatively hot temperature in comparison to its surroundings
- 12. Plate= The Pacific plate is an oceanic tectonic plate that lies beneath the Pacific Ocean
- 18. of fire= a string of volcanoes and sites of seismic activity, or earthquakes, around the edges of the Pacific Ocean.
