Earth's crust, volcanoes and earthquakes

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Across
  1. 1. This type of earthquake wave can travel the fastest of the three and can pass through solids.
  2. 4. This is a layer of solid,unbroken rock.It marks the dividing line between soil and rock.
  3. 5. The process of materials being laid down or deposited by wind, water and ice.
  4. 11. refers to the mechanical and chemical processes that break down rocks by means of water, glacial ice, wind and waves
  5. 13. The distance between two major earthquake waves
  6. 15. What is the name of the 8 major “plates”
  7. 16. This is the third layer of soil, it contains pieces of larger rock and clay and is usually light coloured
  8. 18. Constantly circulating, the same thing happens in the mantle
  9. 19. This type of volcano has large amounts of gas trapped inside it, this makes the eruptions violent. This type of volcano is only active for a short period of time before it becomes dormant.
  10. 20. This type of weathering is caused by the activity of living things VolcanoStructure what does a ash cloud, magma chamber, central vent, side vent, lava, old layers of lava and the earth's crust make up?
  11. 26. this type of Earthquake wave has a rolling motion. They cause the most damage out of the three waves. San Andres What is the name of a famous fault line?
  12. 28. The name of the thing when two plates collide and cause a crack
  13. 30. scale What machine is used to measure the magnitude of an earthquake?
  14. 31. What are the name of scientists who study earthquakes?
  15. 32. This type of weathering happens when chemicals in the air mix with moisture in the air and creates a weak acid that can wear away at things.
  16. 33. where the earthquake begins below the surface
  17. 35. Sudden release of stress between rocks that causes a shaking in the ground
  18. 36. The science of living organisms and things
  19. 38. Molten mass of of mostly iron, towards the center of the earth
Down
  1. 2. Hill or mountain that has a vent in which lava and rock fragments erupt from the earth's crust
  2. 3. Gasses join together with moisture in the air or mix with rain and form acids that return to earth
  3. 6. This type of volcano has very mild eruptions that can occur several times. The magma inside of this volcano is rich in iron and magnesium. His volcano has a gentle slope.
  4. 7. The name of what once was a supercontinent
  5. 8. Thin layer of solid rock
  6. 9. What type of volcano is combined of a cinder cone and a shield volcano?
  7. 10. This happens when two plates collide and one of the plates get pushed under the other
  8. 12. solid portion of something
  9. 14. Occurs when a rock is broken down by by physical forces, such as wind or water. A form of this type of weathering is frost wedging
  10. 17. Large ball of iron and nickel, is almost as hot as the earth's surface
  11. 21. The magma inside of this volcano is rich in silica. The eruption from this volcano can be explosive or flowing lava. This is the most deadly type of volcano.
  12. 22. This type of earthquake waves travel slower than P waves and can only pass through solids.
  13. 23. What is the fastest moving wave in a earthquake?
  14. 24. this is the second layer of soil, it is rich in nutrients needed for plant growth
  15. 25. This is below the earth's crust. It is hot and thick
  16. 27. The name of the machine used to measure the intensity of an earthquake
  17. 29. This is the name of the center of a earthquake
  18. 34. This type of soil is the top layer of soil, it keeps the ground damp by preventing to much water from evaporating
  19. 37. occurs when the products of weathering are transported from place to place