The Rock Cycle
Across
- 3. forms when pressure, temperature, or chemical processes change existing rock.
- 4. molten rock
- 7. the sinking of regions of the crust to lower elevations.
- 8. magma that reaches Earth's surface
- 12. used by early humans as hammers to make other tools.
- 13. The rising of regions of the crust to higher elevations.
- 14. forms when magma or lava cools and hardens to become solid
- 15. The process by which sediment comes to rest.
- 17. the process by which water, wind, ice, and changes in temperature break down rock.
- 18. an area where a set of deep cracks form.
- 19. Processes in which rock changes from one type to another.
Down
- 1. rock made primarily of the mineral calcite.
- 2. rock formations shaped by erosion.
- 5. egyptians used a rock called limestone to create pyramids.
- 6. rise by millimeters each year.
- 9. forms when minerals that form from solutions or sediment from older rocks get pressed and cemented together.
- 10. the process by which sediment is moved from one place to another.
- 11. rock made up of bands of light and dark minerals.
- 16. dwelling in Colorado, home to the Ancient Puebloans.