Plate Tectonics Crossword Puzzle

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Across
  1. 6. A boundary where 2 tectonic plates push together
  2. 7. one of the slabs of rock that Earth's lithospere is broken up into
  3. 9. Earth's crust and very top of the mantle combined
  4. 12. the preserved remains, or traces of remains, of ancient organisms
  5. 13. a boudary where 2 tectonic plates scrape past each other
  6. 14. the huge supercontinent that once included all of the landmasses on Earth; proposed by Alfred Wegener
  7. 15. The layer of hotter, softer rock in the upper mantle, under the lithosphere
  8. 16. the process where an oceanic tectonic plate sinks under another plate
Down
  1. 1. a boundary where 2 tectonic plates move apart
  2. 2. A motion where material is heated and rises in one area, then cools and sinks in another
  3. 3. The hypothesis that Earth's continents were once joined together but have gradually moved apart
  4. 4. a ball of hot, solid metals at Earth's center
  5. 5. Earth's thickest layer, found between outer core and crust
  6. 8. The thin layer of rock that surrounds Earth; outermost layer
  7. 10. a layer of liquid metals that surrounds Earth's inner core
  8. 11. the process by which new oceanic crust forms when magma rises up and solidifies at a mid-ocean ridge