Across
- 2. when one plate moves under another
- 4. a place where two plates start to move away from eachother
- 6. A organic component of soil
- 10. A shaking of the ground that releases seismic waves.
- 11. the innermost geologic layer of planet Earth
- 13. A natural material that can be hardened
- 14. A type of wave produced by a earthquake, faster than seismic waves.
- 18. a squeezing force
- 19. when the continents move away from eachother
- 21. waves created by a earthquake
- 23. the process of creation of new plate material as part of plate tectonics
- 27. The liquid layer between the inner core and the lower mantle.
- 28. the place where two plates move past eachother
- 29. A stretching force
- 31. The layer that comes before the crust, it is still solid, just softer.
- 32. The rough outer part of the earth
- 33. a wave that travels parrallel to earths surface
Down
- 1. the place where two plates move together
- 3. A long, deep depression in the earth that form and the edges of tectonic plates.
- 5. a supercontinent formed 300 million years ago
- 7. the lateral movement of one rock against another.
- 8. a very large wave mostly caused by a underwater earthquake.
- 9. A natural landform that rises high into the air, usually at a steep angle.
- 12. a current in fluid, this causes tectonic plate movements
- 15. the loose surface material on earth, made of organic materials
- 16. A type of soil that is rich in organic matter.
- 17. large pieces of earths crust that very slowly shift positions
- 19. The hard, thin outer layer of earth.
- 20. the softer outer layer of earths mantle
- 22. The intersection of two plates
- 24. A spot in the crust where magma has come to the surface
- 25. a ring of subduction zones
- 26. the second wave to hit a seismograph, caused by a earthquake
- 30. the lower area of land between hills and/or mountains