Plate Tectonics
Across
- 3. a thicker but less dense crust making up the earth's land
- 8. a supercontinent that existed about 550 milion years ago
- 10. the rising of oceanic crust caused by a convergent boundary
- 11. an invisible field surrounding the earth which is responsible for electromagnetic activity on the planet
- 13. the second and thickest layer of the earth which is made up of magma
- 16. a common metal believed to be found inside of the earth's outer core
- 17. a common metal found inside of the earth's cores
- 20. molten rock found upon the earth's surface
- 22. the final and innermost layer of the earth which is made up of solid metals
- 23. a type of volcano distinguised by a large and flat dome-like base
- 24. the shaking of the earth's crust due to tectonic movements
- 27. a type of volcano distinguished by a standard base but cone-shaped peak
- 28. molten rock found within the earth's crust and mantle
- 29. the outermost and thinnest layer of the earth which is made up of solid rocks
- 30. a boundary in which two tectonic plates collide
- 31. the area between two tectonic plates
- 32. a large and devastating wave caused by tectonic activity
- 33. the separation and spreading of oceanic crust found upon a divergent boundary
Down
- 1. a boundary in which two tectonic plates move apart
- 2. a thin and dense crust found below the earth's oceans
- 4. a boundary in which two tectonic plates slide against eachother
- 5. a supercontinent that existed about 335 million years ago
- 6. a fracture between sets of rock or plates
- 7. the movement of earth's crust due to the movement of tectonic plates
- 9. large rocks that move around underneath the earth's crust
- 12. a scale to measure the severity of an earthquake
- 14. the upper section of the earth's mantle and the crust
- 15. a type of volcano distuinguished by a recognisable and extremely tall cone shape
- 18. currents found within the mantle caused by the rising and falling of heat in the magma
- 19. the third layer of the earth which is made up of liquid metals
- 21. a mountainous-like mound of varying shapes and sizes that connect to magma chambers below the earth through vents
- 25. a lowland often found between montainous regions at divergent boundaries
- 26. an event in which crust or a tectonic plate slides underneath another