Across
- 1. A break in Earth's crust along which rocks move
- 7. A plate boundary where two plates move past each other in oppsite directions
- 9. The transfer of thermal energy by the movement fluid
- 10. The theory that pieces of Earth's lithosphere are in constant motion, driven by convection currents in the mantle.
- 12. A string of volcanoes that form as the result of subduction of one oceaic plate benath a second oceanic plate
- 14. The process by which oceanic crust sinks beneath a deep ocean treach and back into athe mantle at a convergent plate boundary
- 16. The transfer of energy by electromagnetic waves
- 17. The name of th esingle landmass that began to break apart 200 million years ago and gave rise to today's continenets
- 19. The preserved remains or traces of an organism that lived in the past
- 21. A plate boundary where two platemove away from each other
- 22. The molten mixture of rock forming substances, gasses, and water from the mantle
- 23. A plate boundary where two plates move toward each other
- 24. The transfer of thermal energy from one particleof matter to another
- 25. A section of the lithospher that slowly moves over the asthenosphere, carrying pieces of continental and oceanic crust
Down
- 2. The process by which molten material adds nre oceanic crust to the ocean floor
- 3. An area where magma from deep within the manlts through the crust above it
- 4. The hypothesis that the continents slowly move across Earth's surface
- 5. The movement of a fluid, caused by differences in temperature, that transfers heat from one part of the fluid to another
- 6. Liquid magma that reaches the surface
- 8. The measurement of how much mass of a substance is contained in a given volume
- 11. An undersea mountain chain where new ocean floor is produced; a divergent plate boundary under the ocean
- 13. A deep valley that forms where two plates move apart
- 15. A deep valley along the ocean floor beneath which oceanic crust slowly sinks toward the mantle
- 18. A weak spot in the crust where magma has come to the surface
- 20. A major belt of volcanes that rims the Pacific Ocean