Layers of the Earth & Plate Boundaries

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Across
  1. 1. Waves that generate by earthquakes or explosions and travel along the Earth's surface?
  2. 5. When one tectonic plate moves underneath another one, it's called...?
  3. 8. The type of heat transfer through the movement of liquid or gases?
  4. 9. The outermost layer of the Earth that consists of the crust and the uppermost part of the mantle?
  5. 10. the oceanic crust is _____ than the continental crust.
  6. 12. Earth's thickest layer?
  7. 13. What is the density of the upper Mantle?
Down
  1. 2. What is the type of plate boundary in subduction zones?
  2. 3. The layer below the Lithosphere?
  3. 4. The liquid layer of the Earth's core?
  4. 6. a mountain that forms when magma reaches the Earth's surface
  5. 7. Type of plate boundary where two plates separate or move apart?
  6. 11. A break or crack in the Earth's crust where masses of rock slip past each other?