Across
- 2. how many landmasses did all continents once form
- 7. the upper layer of the earth's mantle, below the lithosphere
- 9. Hot melted rock inside the earth
- 10. the change in global climate patterns
- 11. drift Continents movement
- 12. a man explains why continents seem to fit together
- 14. Super Continent
- 15. process that happens when Earth's magnetic poles change place
- 17. its innermost part of Earth primarily solid ball with a radius of about 1,220 km
- 18. one of the broken up land mass
- 20. the solid mineral material
Down
- 1. two huge continents split
- 3. Sections of earth crust
- 4. is a liquid layer about 2,266 km thick composed of iron and nickel
- 5. Mid Ocean Ridge
- 6. areas where sea-floor spreading takes place
- 8. huge continent 180 million years ago
- 13. the remains or impression of a prehistoric organism preserved in petrified form or as a mold or cast in rock
- 16. the rigid outer part of the earth, consisting of the crust and upper mantle
- 19. a living organism that feeds on organic matter