Across
- 5. scientist who studies earthquakes.
- 7. the name given to the super continent
- 9. a break in the Earth's crust along which two blocks of the crust slide relative to one another
- 11. any trace of an ancient organism that has been preserved in rock
- 13. layer between the crust and the core
- 14. the outermost, rigid layer of the Earth that consists of the crust and the rigid upper part of the mantle
- 15. the result of a force distributed over an area
- 19. boundary of two tectonic plates where the plates move towards each other.
- 20. A boundary of two tectonic plates where the plates move away from each other.
Down
- 1. credited with the theory of Continental Drift
- 2. the type of stress that occurs when forces act to stretch an object
- 3. soft layer of the mantle
- 4. vibration from underground movement along a fault plane
- 6. boundary of two tectonic plates where the plates slide past each other.
- 8. two tectonic plates slowly crash into each other and form mountains
- 10. Crust This is the layer we walk on.
- 12. drift hypothesis that the continents slowly move across Earth's surface
- 16. zone region where an oceanic plate sinks down into the asthenosphere
- 17. caused by warm fluids rising and cooler fluids sinking.
- 18. Plates Slowly moving pieces of Earth’s crust.