Plate Tectonics
Across
- 3. When oceanic plate subducts under continental plate
- 5. One of the two original continents that Pangaea split into.
- 6. Innermost layer of Earth.
- 7. Waves that are sent out and are timed coming back to map out objects
- 9. Longest mountain chain
- 12. The valley between two diverging plates
- 14. Chunks of the Earth that float on the lithosphere.
- 17. The other of the two continents that Pangaea split into.
- 18. It means “millions of years ago”
- 20. When two plates float toward each other.
- 23. Melted rock
- 24. Outer layer of Earth.
- 25. Fault the runs through California.
- 26. Layer of molten metal that covers the inner core.
- 28. Crust that makes up the continents.
- 30. smaller, less important plates
- 32. Thickest layer of Earth.
- 33. The seven major land masses on the planet Earth.
- 34. Where hot rocks rise, and cool rocks fall creating a flowing circle
- 35. First living organism
- 36. When a divergent boundary occurs and the magma helps create a new part of the plate.
- 37. String of mountains
- 38. Produced by the inner core spinning within the outer core.
- 40. Molten rock.
- 41. Created theory of continental drift
- 43. Immense forces that are sent up through the Earth.
- 44. Solid ball of iron in the center of the Earth.
Down
- 1. Earth’s supercontinent from over 200 MYA.
- 2. Amount of force pressing on an object.
- 4. Deepest trench in the world.
- 5. One who studies geology.
- 8. When two plates float apart.
- 10. Upper layer of the mantle.
- 11. Where lava erupts of out the earth
- 13. Crust located under the ocean.
- 15. Lower layer of the mantle.
- 16. The study of tectonic plates.
- 19. Forces that destroy landmasses.
- 20. Forces that build landmasses.
- 21. The study of the planet Earth.
- 22. When two plates grind against each other.
- 23. The landmass that is created when two plates come together along a Upper
- 27. When one plate slides underneath the other.
- 28. The theory of how the continents got where they are today.
- 29. Vibrations that travel through the Earth.
- 30. Where geology was first founded
- 31. Larger, more important plate
- 39. Magma that has come out of the earth
- 42. A place where move relative to each other