Across
- 4. continuous force against a object
- 6. A Earth period when earth was just a giant fireball
- 10. layers of rock formed from fragments of other rock or sediments
- 11. The heating of rock until it turns to liquid
- 15. A period on Earth when the crust first cooled and solidified
- 16. A layer or layers of rock/rocks in the ground
- 17. traces of living things that have turned to Rock with time and pressure
- 18. The center of the earth very hot
- 19. photosynthetic bacteria and multicellular organisms appear in fossil record
Down
- 1. Process in which wind water or other natural causes turn material in sediments
- 2. molten or partly melted rocks or minerals
- 3. A thick layer of magma below the crust of the earth
- 5. something that is broken down by processes of weathering and erosion
- 7. Rock having solidified from magma or lava
- 8. The outer shell of Earth
- 9. Mountains made from pressure pusing magma to the surface and then cooling
- 11. A rock formed from other types of rock through heat and pressure
- 12. is the process by which magma affects the structures and properties of earth's crust
- 13. The first time visible life appears in the fossil record
- 14. a break or weak point in the Earth’s crust