Plate Tectonics Crossword

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Across
  1. 1. when tectonic plates move in the same direction at different speeds
  2. 3. type of seismic wave that can go through solid and liquid, arrives first
  3. 5. the length of the wave from one crest to another
  4. 6. a current in the mantle that happens when hotter and less dense molecules move up
  5. 11. the height of the wave measured from the midline to the crest
  6. 12. how many waves pass a point per second
  7. 13. layer of the core that is solid
  8. 14. another name for the tectonic plates
Down
  1. 2. type of seismic wave that goes along the crust and causes damage during earthquakes
  2. 4. type of seismic wave that can only go through solids, arrives second
  3. 6. the layer on Earth where we live
  4. 7. largest layer of the earth where convection currents occur
  5. 8. when tectonic plates move towards each other
  6. 9. layer of the core that is liquid
  7. 10. when tectonic plates move away from each other