Earth Layers and Composition

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Across
  1. 3. Protective field generated by Earth's outer core
  2. 4. Thickest layer of Earth where convection currents occur
  3. 10. The materials that make up a substance
  4. 12. Study of Earth and its structure
  5. 13. Vibrations that travel through Earth during earthquakes
  6. 14. Outermost and least dense layer of Earth
  7. 15. Amount of mass in a given volume
  8. 17. Liquid layer made mostly of iron and nickel
  9. 18. Main metal that makes up Earth's core
  10. 20. Sudden shaking caused by movement of Earth's crust
Down
  1. 1. Measure of how hot or cold something is
  2. 2. Relating to earthquake waves used to study Earth
  3. 5. Rigid outer layer made of the crust and upper mantle
  4. 6. State of matter of the inner core
  5. 7. State of matter of the outer core
  6. 8. Transfer of heat by movement of material
  7. 9. Molten rock found beneath Earth's surface
  8. 11. Force exerted on an object by surrounding materials
  9. 16. Solid center of Earth with the greatest pressure
  10. 19. Metal found in Earth's core