Plate Tectonics Project

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Across
  1. 2. had once been joined
  2. 5. when the oceanic plate goes underneath the continental creating volcanoes
  3. 8. where two boundary are moving towards each other
  4. 9. The first name of the scientist who came up with the theory of plate tectonics.
Down
  1. 1. where plates slide apart from each other
  2. 3. the upper mantle
  3. 4. is broken into 8 major plates
  4. 6. that move slowly over the lower mantle
  5. 7. where plates slide past each other