Across
- 2. The word that describes when a volcano emits lava and ash
- 4. The dust leftover after the eruption of a volcano
- 6. A molten rock that breaks through the surface
- 9. Huge irregular rock slab of the lithosphere, have been moving for 3.4 billion years
- 12. Zone under a convergent plate boundary, form volcanos
- 13. A device used to measure seismic activity
- 14. Type of plate boundary that merges into one another
Down
- 1. A ring of volcanic activity around the Pacific Plate Boundary
- 3. Part of earth that consists of middle and lower Mantle
- 5. A molten rock that forms under the surface
- 7. A spot under the crust where heat from the mantle rise to create volcanoes
- 8. Part of the earth that consists of the Upper Mantle and Crust
- 10. Also known as Stratovolcano, this type of volcano is formed when layers of lava and ash alternate
- 11. A large wave generated from earthquakes