Chapter 9 Earth's Changing Surface Lessons 1, 2 and 3 (5)

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Across
  1. 3. This type of crust lies beneath the ocean floor.
  2. 5. this is a section of the lithosphere.
  3. 9. these are cracks in the crust where surrounding rock has moved or shifted.
  4. 10. The edges of plates are called _____.
  5. 16. these are made when the crust folds, tilts, and lifts as the plates meet.
  6. 18. these types of forces and processes build new features on Earth's surface.
  7. 19. This rock or stone weathers more quickly than granite.
  8. 22. this type of weathering is the breaking of rock into smaller pieces by force.
  9. 23. Rift Valleys between spreading plates can be seen at the bottom of the ocean and in this country.
  10. 24. This type of weathering is the changing of materials in a rock by a chemical process.
  11. 25. This is the place of Earth's surface above the focus.
  12. 26. Oceanic Crust is made mostly of this dark green rock.
  13. 27. The top of the main vent of a volcano.
Down
  1. 1. this is the place where the plates start to slip.
  2. 2. Most of these form near colliding plate boundaries.
  3. 4. This is the layer that makes up most of the Earth's material.
  4. 6. Earth's outermost and thinnest layer.
  5. 7. this is at the very center of the Earth and is made mostly of iron.
  6. 8. A volcanic _____ forms when a volcano reaches the surface of the water.
  7. 11. This is the top part of the mantle and the crust above it.
  8. 12. This is nearly solid rock that lies under the surface.
  9. 13. Studying vibrations from ____ is another way scientist can study the Earth's Layers.
  10. 14. This type of plate boundary forms when plates move apart from each other.
  11. 15. This is where the crust is the thickest.
  12. 17. At this type of plate boundary two plates move past each other in opposite directions,
  13. 20. This is the second layer of soil.
  14. 21. This is the liquid portion of the core.