Across
- 4. _________ trends can significantly affect the value of a gemstone
- 6. number of major plates of the Earth’s crust
- 8. name for a solid with a specific structure
- 10. a rock or mineral formed from molten material
- 12. what scientists cannot do for the date, time, and size of an earthquake
- 14. the way a mineral reflects light
- 15. type of boundary seen in continental rifts and mid-ocean ridges
- 16. nickname for a mantle plume volcano in the middle of a plate
- 17. molten rock below the earth’s surface
- 20. a rock or mineral formed when heat and pressure are applied to existing rock
- 21. occur as the first sign of volcanic activity
- 22. plate boundary in California
Down
- 1. molten rock on the earth surface (including in the ocean)
- 2. definition of mineral – state of matter
- 3. definition of a mineral – how it’s made
- 4. the actual location of an earthquake
- 5. type of boundary producing the most severe earthquakes and volcanoes
- 7. the surface location above an earthquake focus
- 8. property of a mineral breaking along flat surfaces
- 9. minimum number of sites needed for triangulation
- 11. a rock or mineral that forms from water or from pieces of other rocks
- 13. a large section of the Earth’s crust
- 16. measured on Moh’s Scale
- 18. the rock _________ describes the continual recycling of rock types
- 19. definition of a mineral – type of compounds