Across
- 5. The Crust The Mantle Convection Currents Outer Core Inner Core
- 8. the gradual movement of the continents across the earth's surface through geological time
- 10. a current in a fluid that results from convection.
- 11. first waves from an earthquake to arrive at a seismograph
- 12. a layer inside a terrestrial planet and some other rocky planetary bodies
- 13. the central part of the earth
- 14. secondary waves, or shear waves
Down
- 1. the rigid outer part of the earth, consisting of the crust and upper mantle.
- 2. It lies below the lithosphere, at depths between approximately 80 and 200 km below the surface
- 3. is the theory that Earth's outer shell is divided into several plates that glide over the mantle, the rocky inner layer above the core
- 4. is a process that occurs at mid-ocean ridges, where new oceanic crust is formed through volcanic activity and then gradually moves away from the ridge
- 6. a supercontinent that existed during the late Paleozoic and early Mesozoic eras
- 7. the region surrounding the earth or another astronomical body in which its magnetic field is the predominant effective magnetic field
- 9. the waves of energy caused by the sudden breaking of rock within the earth or an explosion
- 13. the out most layer of the earth