plate tectonics

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Across
  1. 1. molten rock below the earth's surface
  2. 3. the separating of continents by drifting across the oceans
  3. 6. a layer of 'plastic' semi-solid rock in the lower mantle
Down
  1. 1. patterns of magnetism trapped in rocks on each side of the plate boundaries
  2. 2. a place where extremely hot material from inside the earth erupts at the surface
  3. 4. molten rock that has erupted onto the earth's surface
  4. 5. a huge wave in the ocean caused by an earthquake occurring on the seafloor