Crossword Puzzle !
Across
- 3. its where two tectonic plates meet
- 4. a type of elastic wave, also called seismic waves, that can travel through gases
- 6. is a process that takes place at convergent boundaries by which one tectonic plate moves under another tectonic plate
- 8. an unsatisfactory feature of one's work
- 9. a divergent boundary or divergent plate
- 12. a type of seismic, also known as the elastic s-waves
- 13. the crust and upper mantle of the earth
- 14. the thin part of the earth's crust that under lies the ocean basins
- 15. the point on the earth's surface vertically above the focus of an earthquake
Down
- 1. a numerical scale for expressing the magnitude of an earthquake on the basis of seismograph
- 2. in plate tectonics, a boundary also known as a destructive boundary
- 3. the part of a continent that is stable and forms the central mass of the continent
- 4. a theory explaining the structure of the earth's crust
- 5. the think crust of the earth's crust that forms the large landmasses, it is generally older and more complex than the oceanic crust
- 6. the branch of science concerned with earthquake and related experience
- 7. the gradual movement of the continents across the earth's surface through geological time
- 10. the upper layer of the earth;s matle, below the listhosphere
- 11. a sudden and violent shaking of the ground, sometimes causing destruction, as a result movements of the earth's crust is involved