Across
- 2. ratio of mass to volume
- 4. mud silt and sand all are examples of
- 6. what is the name of the hardness scale
- 8. a solid made from on or more minerals put together
- 10. what is the softest mineral
- 12. the way the mineral reflects light
- 13. the mineral must be fromed in
- 15. what rock is formed by cementation and compaction
- 16. true or false the streak of a rock has to be the same as the color
- 19. break on uneven sides of the rock
- 20. name one simple machine that can cut a rock
Down
- 1. what is the hardest mineral
- 3. which type of rock is formed by heat and pressure
- 5. what rock is formed by coolling magma
- 7. which test to identify mineals is measured in numbers
- 9. the apperance of a rock
- 11. when a mineral splits on flat surfaces
- 14. how many groups are the rocks split into
- 17. layers in a sedimentary rock
- 18. the color of the powder the mineeral leaves behind when scratched on white porecelian