Across
- 1. stabilization-implementing man made methods or structures to stop or slow the erosion of beaches
- 2. boundary-the boundary between two tectonic plates that are moving away from eachother
- 4. weathering-Breaking down rocks through physical processes like freezing and thawing
- 8. the needs of the present without compromising the ability
- 9. soil-Soil located above its parent material
- 11. wave-a type of seismic wave that forms when P waves and S waves
- 14. removal of trees faster than forests can replace themselves
- 16. rocks from one kind to another
- 19. magnitude scale-A scale that rates earthquakes by estimating the total energy released by an earthquake
- 22. sediment from one location to another
- 23. type of seismic wave that moves the ground up/down/side/side
- 24. process by which wind water ice or gravity transports soil
- 28. cycle
- 29. rock-a rock that forms from compressed or cemented layers of sediment
- 30. volcano-all coneshaped mountains in which layers of lava alternate with layers of ash
- 32. scale-A scale that rates an earthquakes magnitude based on the size
- 34. vent or fissure in the Earths surface through which magma and
- 35. in which sediment is laid down in new locations
- 39. its seismic waves
- 41. movements of Earths crust followed by a series of shocks
- 43. rock-a type of rock that forms from the cooling of molten rock at or below the surface
- 44. ridge-An underwater moutain chain where new ocean floor is formed
Down
- 1. science or practice of farming including cultivation of the soil
- 3. weathering-The process that breaks down rock through chemical changes
- 5. that reaches Earths surface
- 6. mercalli scale-a scale that rates the amount of shaking from an earthquake
- 7. in which terrestrial plants grow
- 10. Hypocenter-the place within Earth where earthquake waves originate
- 12. of people from rural areas to cities
- 13. the growing of crops
- 15. soil-Soil that has been moved away from its parent material by water wind or a glacier
- 17. boundary-a tectonic plate boundary were two plates colide come together and crash into eachother
- 18. weak spot in the middle of a tectonic plate where magma surfaces forms a volcano
- 20. cone volcano-A small steeply sloped volcano that forms from moderately explosive eruptions of pyroclastic material
- 21. of plate tectonics-stating that Earths lithosphere is broken into huge plates that move and change in size over time
- 25. rock-A series of processes on the surface and inside Earth that slowly
- 26. liquid resistance to flow
- 27. volcano-a wide gently sloping mountain made of layers of lava and formed by quiet eruptions
- 31. boundary-a plate boundary where two plates move past eachother in oppisite directions
- 33. are expelled
- 36. point on the Earths surface directly above the focus of anearthquake
- 37. future generations to meet their own needs
- 38. type of seismic wave that compresses and expands the ground
- 40. break in earths crust
- 42. mixture of mineral particles and organic material that covers the