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Across
  1. 2. the shaking and trembling that results from movement of rock beneath Earth's surface.
  2. 5. the measure of the amount of matter in an object.
  3. 7. a dense ball of solid metal.
  4. 11. The transfer of heat through contact
  5. 12. The point on the surface directly above the focus
  6. 14. the measure of the force of gravity acting on an object.
  7. 15. a given volume.
Down
  1. 1. an instrument that records and measures an earthquake's seismic waves.
  2. 3. The transfer of heat through fluid
  3. 4. the measure of how much mass is contained
  4. 5. a standard measurement system based on the number 10.
  5. 6. The transfer of heat through waves
  6. 8. a layer of molten metal surrounding the inner core.
  7. 9. the ability to do work
  8. 10. the layer of rock that forms Earth's outer skin
  9. 13. average