Across
- 4. a naturally formed solid in a crystal structure
- 6. the movement of one plate under another plate
- 9. the tenacity of a mineral to break along a flat
- 10. large cracks in earths crust
- 12. describes how a mineral reflects light
- 13. almost a lava but not liquid enough
- 14. the rocky outer shell of earth
- 16. rock moved by wind and water
- 18. a mineral might be one _____
Down
- 1. the tenacity of a mineral to break in a way that is not along a flat
- 2. earths outermost layer
- 3. core solid iron and nickel
- 4. a melted material underneath the earth
- 5. are solid earth materials formed by a mixture of minerals
- 7. the plate________ is the thing that makes earthquakes
- 8. rock that has been changed from its original form by pressure and heat
- 11. the color of a mineral in powder form
- 14. comes out of a volcano
- 15. shape the atoms of iron
- 17. core made up of mostly molten