Across
- 4. the transfer of thermal energy from one particle of matter to another
- 5. the preserved remains or traces of an organism that lived in the past
- 8. the measurement of how much mass is contained in a given volume
- 10. a section of the lithosphere that slowly moves over asthenospherem carrying pieces of continental and oceanic crust.
- 11. molten mixture of rock forming substances, gases, and water from the mantle.
- 12. a weak spot in the crust where magma has come to the surface
- 16. boundary a plate boundary hwere two plates away from each other
- 18. current the movement of a fluid caused by difference in temperature that transfers heat from one part of a fluid to another
Down
- 1. the process by which oceanic crust sinks beneath a deep-ocean trench and back into the mantle as a convergent boundary.
- 2. drift the hypothesis that the continents slowly move across the Earth's surface
- 3. ridge an undersean mountain chain wher new ocean floor is produced; a divergent plate boundary under the ocean
- 6. of fire a major belt of volcanoes tht rims the Pacific Ocean
- 7. spot an area where magma from deep within the mantle melts through the crust above it
- 8. ocean trench a deep valley along the ocean floor beneath which oceanic crust slowly sinks toward the mantle.
- 9. liquid magma that reaches the surface
- 10. the name of the single landmass that began to break apart woo million years ago and gave rise to today's continents.
- 13. the transfer of energy by electromagnetic waves
- 14. spreading the process by which molten material adds new oceanic crust to the ocean floor.
- 15. the transfer of thermal energy by movement of a fluid
- 17. arc a string of volcanoes that form as the result of subduction of one oeceanic plate benearthha second oceanic plate