Jaeda's Tectonic Plate Crossword.

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Across
  1. 3. the central part of the Earth
  2. 8. a salt or ester derived from silicic acid
  3. 9. the part of the Earth consisting of the crust and mantle
  4. 10. molten rock in the earth's crust
  5. 12. tending to come together from different directions
  6. 16. of or relating to or characteristic of the crust of the earth or moon
  7. 18. the relatively shallow seabed surrounding a continent
  8. 19. the movement or study of the movement of Earth's crust
  9. 20. a long steep-sided depression in the ocean floor
  10. 21. (plate tectonics) a hypothetical continent including all the landmass of the earth prior to the Triassic period when it split into Laurasia and Gondwanaland
Down
  1. 1. the lower layer of the crust
  2. 2. the branch of geology studying the folding and faulting of the earth's crust
  3. 4. a property used to characterize materials in reactions that change their identity
  4. 5. alteration in the shape or dimensions of an object as a result of the application of stress to it
  5. 6. the phenomena associated with volcanic activity
  6. 7. the gradual movement of very large land masses
  7. 11. a solid inorganic substance occurring in nature
  8. 13. the part of a rock formation that appears above the surface
  9. 14. movement of the edge of one tectonic plate under another
  10. 15. a rigid layer of the Earth's crust that is believed to drift slowly
  11. 17. a long narrow depression in a surface