Earths Layers

123456789
Across
  1. 2. solid part of upper mantle
  2. 7. layer of rock which forms the continents
  3. 8. fluid layer about 2,260 km thick, made of mostly iron and nickel
  4. 9. waves of energy caused by earthquakes
Down
  1. 1. a thin layer of crust that overlies the ocean basins
  2. 3. Outer most shell of a terrestrial planet
  3. 4. solid outer section of the Earth
  4. 5. largest layer of earth
  5. 6. very hot very dense center of our planet