Across
- 4. The central or innermost portion of the Earth
- 8. deposits, Evidence that Africa was once cold
- 9. Wegener, is the scientist who made the theory on continental drift
- 11. current, The cycle of heating, rising, cooling, and sinking is
- 13. waves, Move faster through denser or move rigid materials
- 18. Reptile fossil found in South America and Africa
- 20. Forms from the mantle and its recycled back into the mantle
- 22. Center of an earthquake
- 26. convection., Possible causes of plate movements are
- 27. where one plate moves under another
- 30. drift, Slow movement of continents
- 31. crust, is the crust that is ender the world
- 33. the upper layer of the earth's mantle
- 34. is a geological process that takes place at convergent boundaries of tectonic
- 35. lithosphere, Divided into several parts
- 37. push, Possible causes of plate movements are
- 38. Occur at all three types of boundaries
- 39. spot, a concentration of heat in the mantle capable of creating magma
- 40. are long, narrow depressions on the seafloor
- 41. spreading, The process that continually adds new material to the ocean floor
Down
- 1. is a record written by a seismograph
- 2. range, Series of mountains
- 3. Form mostly at converging and diverging plate boundaries
- 5. ridge, is a seafloor mountain system formed by plate tectonics
- 6. is a layer inside a planetary body
- 7. boundary, type of boundary do plates moves away from each other
- 10. is extremely hot liquid and semi-liquid rock located under Earth's surface
- 12. form the longest mountain ranges on the earth
- 14. Andreas Fault, It is one of the most famous transform fault
- 15. relating to the structure of the earth's crust and the large-scale processes which take place within it
- 16. Island arc, a chain of volcanoes that develop parallel to a trench
- 17. trenches, narrow basins which extend 8-11 km below sea level
- 19. is the instrument used to mapped the mid-ocean ridges
- 21. boundary, Two plates sliding past each other
- 23. wave, is a seismic body wave that shakes the ground back and forth in the same direction
- 24. boundary, Mountains are formed at
- 25. pull, Possible causes of plate movements are
- 28. is the mineral that's a major component or continental crust
- 29. a supercontinent that incorporated almost all the landmasses on Earth
- 32. is the outermost layer of a planet
- 36. plumes, is an upwelling of abnormally hot rock within the Earth's mantle
- 39. Hess, The seafloor spreading theory was proposed by