Across
- 4. ‐ Any of various instruments for measuring and recording the vibrations of earthquakes
- 5. plate ‐ a large piece of the lithosphere that floats and moves on the asthenosphere.
- 6. ‐ A deep valley that forms at the edge of a continent when an oceanic plate sinks underneath a
- 9. trench ‐ a long, narrow, deep area on the ocean floor that is formed at a convergent plate boundary.
- 10. spot ‐ is formed when very hot rock rises from the mantle and erupts through Earth’s crust.
- 13. ‐ Part of a grid used for describing positions on the earth's surface, consisting of half circles
- 15. boundary ‐The boundary that occurs where two plates slide past each other.
- 19. boundary ‐ an area where two or more tectonic plates meet.
- 20. ‐ the layer of Earth between the core and the crust
- 21. ‐ The point on earth’s surface that is vertically above the focus of an earthquake.
- 23. ‐ melted rock on Earth’s surface.
- 25. ‐ a straight line of travel where data is being collected.
Down
- 1. ‐ The point of origin of an earthquake
- 2. at the poles
- 3. plate.
- 7. landslide, or volcanic eruption.
- 8. ‐ the outermost layer of Earth.
- 11. ‐ a slowly flowing layer of solid and melted rock formed by heat and pressure
- 12. ‐ the solid outer part of Earth that includes the crust and upper mantle.
- 14. ‐ A huge ocean wave caused by a sudden, powerful shift on the ocean floor, like an undersea
- 16. Scale ‐ A logarithmic scale, ranging from 1 to 10, for indicating the intensity of an earthquake
- 17. - melted rock beneath Earth’s surface.
- 18. ‐ A transference of energy
- 22. Tectonics Vocabulary
- 24. ‐ The distance from the center of a circle to any point on its circumference