Across
- 2. softest mineral on Mohs Hardness Scale
- 4. what diamond is on the Mohs Hardness Scale
- 8. motion when plates move away from each other
- 11. tallest mountain on Earth is this
- 13. movement of molten rock in the mantle
- 14. the rock __________
- 16. the amount of space something takes up
- 18. rocks are made of these
- 20. how much stuff is in something
- 21. this and pressure forms metamorphic rocks
- 22. Alfred Wegener's theory of continental___________
Down
- 1. size of crystals in igneous rocks
- 3. hottest part of Earth
- 5. plate motion that causes earthquakes
- 6. left by a mineral on a streak plate
- 7. Wegener found these on different continents
- 9. pressure does this moving toward inside of Earth
- 10. layers of a metamorphic rock
- 11. rock that forms from cooled magma
- 12. magma on outside of Earth
- 14. motion when plates move toward each other
- 15. Earth is broken into these
- 17. outer most layer of Earth
- 18. layer of Earth where convection currents are
- 19. how light reflects off a mineral