plate tectonic
Across
- 1. when 2 plates are moving towards each other
- 5. the chemistry of the earths crust
- 7. a rigid layer of the earths crust that is believed to drift slowly
- 8. a specialist of the history of the earth recorded in rocks
- 12. came up with the theory of continental drift
- 13. molten rock in the earths crust
- 16. transfer of heat caused by molecular motion of liquid or heat
- 17. the movement or study of the movement of the earths crust
- 19. movement of one tectonic plate under another
- 20. a geologist who uses physical principles to study the properties of the earth
Down
- 2. when 2 plates are rubbing up against each other
- 3. lower layer of the crust
- 4. a large gap made from divergent plates
- 6. happens when plates scrape together
- 9. a fissure in the earths crust through which gasses explode
- 10. when 2 plates are moving away from each other
- 11. of or relating to of characteristics of the crust of the moon or the earth
- 14. super continent
- 15. the branch of geology studying the folding and faulting of the earths crust
- 18. occurs from convergent plates