Across
- 4. natural preservation of life
- 6. a type of rock made from lava/magma
- 9. the center of earth (2 of them, outer and inner)
- 10. lava before it reaches the surface
- 14. a type of earth plate, plate boundary, type of mountain source
- 16. the first fireball period on earth
- 17. layers of earth between the core and the crust
- 19. rocks formed by heat and pressure over time
- 20. layers of sedimentary rocks from the deposition of sediments
Down
- 1. when matter reaches a certain heat and changes form
- 2. natural shaping by wind, rain, and snow (transfer or removal of sediments)
- 3. pieces of sedimentary rock
- 5. a type of rock made with sediments
- 7. in relation to volcanos
- 8. 3rd eon on earth, means proto (in the making)
- 11. the second era, organ of life
- 12. 4th eon on earth, first visible life
- 13. force or gravity upon something
- 15. top of earth's layers
- 18. a break in earth's crust which blocks one side