Across
- 3. a mixture of molten and semi-molten rock found beneath the surface of the Earth.
- 6. an area of the Earth’s mantle from which hot plumes rise upward, forming volcanoes on the overlying crust.
- 8. formed by oceanic and continental crust in a convergent boundary.
- 10. Geologically, a volcanic island is an island of volcanic origin. The term high island can be used to distinguish such islands from low islands, which are formed from sedimentation or the uplifting of coral reefs.
- 12. the sudden release of strain energy in the Earths crust, causing shaking from the source
- 13. A tectonic boundary where two plates are moving toward each other and collide.
- 14. contain a high-density mix of hot lava blocks, pumice, ash and volcanic gas
- 15. molten rock ejected by volcanoes in the form of a liquid
- 17. solid, outer part of Earth, including the brittle upper portion of the mantle and the crust
- 18. a path along the Pacific Ocean characterized by active volcanoes and frequent earthquakes
- 19. forms when hot, molten rock crystallizes and solidifies
- 20. the largest plate on earth
Down
- 1. The process that occurs when two tectonic plates meet at convergent boundaries, and one of the plates moves under the other one due to gravity and differences in density
- 2. a mixture of water and rock fragments that flow quickly down the slopes of a volcano
- 4. a mountain or hill, having a crater magma and minerals been erupted from the earth's crust.
- 5. granite
- 7. Boundary: The location where two plates meet.
- 9. basalt
- 11. a mixture of materials expelled from a volcano eruption.
- 16. a portion of the Earth's mantle that flows like molten plastic despite being solid.