Tiffany's crossword

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Across
  1. 5. a partly molten layer in Earth's upper mantle just below the lithosphereasthenosphere
  2. 6. a record of ground motionseismogram
  3. 8. an opening in Earth's surface that,when active ,spews out gases,chunks of rock,and melted rock volcano
  4. 9. the study of the magnetic properties of ancient rockspaleomagnetism
  5. 10. Earth's outermost layer formed by lighter materialscrust
  6. 11. lithospherethe later of Earth made up of the crust and uppermost mantle and ranging in thickness from 65km to 100km
  7. 14. the action of one tectonic plate pushing underneath another
Down
  1. 1. Earth's thickest layer,lying just below the crust and making up 70 percent of Earth's volumemantle
  2. 2. the measure of how much area of an object is exposed;can affect reaction ratesurface waves
  3. 3. the extent of ancient glaciers;also the rock markings they left behindpaleoglaciation
  4. 4. molten rock beneath Earth's surfacemagma
  5. 7. Earth's solid centreinner core
  6. 12. a study of earthquakes and seismic waves
  7. 13. in geology,the location inside Earth where an earthquake starts focus
  8. 15. a deep underwater valley that is formed when an oceanic plate collides with a continental plate and is forced to slide beneath it