layers of earth

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Across
  1. 2. convection occurs
  2. 5. tranfers heat
  3. 6. thinnest layer of earth
  4. 7. liquid layer of earth
  5. 9. a sheet, quantity, or thickness of material typically one of several covering a surface or body
Down
  1. 1. makes up the planets continents
  2. 2. molten material from center of earth
  3. 3. densest layer of earth
  4. 4. causes different layers
  5. 8. underlies ocean basins