Across
- 4. a rock formed by sediments
- 6. matter that settles to the bottom of liquid
- 8. to be liquified by heat
- 11. relating to the forming of the earth’s crust
- 13. earth’s center
- 15. continuous physical force
- 16. fireball earth
- 17. a rock formed by heat and pressure
- 18. mountains formed by magma
Down
- 1. a discontinuity in the crust
- 2. the transportation of materials by wind water or ice
- 3. photosynthetic life begins
- 5. the remains of prehistoric things
- 7. the layer between earth’s crust and the outer core
- 8. hot semifluid material within or beneath the earth’s crust
- 9. a rock solidified from lava/magma
- 10. layers of rocks below the ground
- 12. the outermost layer of a planet
- 14. plate tectonics begin
- 15. visible life appears