PLATE TECTONICS

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Across
  1. 2. The crust of the Earth "floats" on this layer of the Earth
  2. 6. Large sub-marine mountain ranges under oceans
  3. 7. Huge parts of the Earth's crust which are moving as one
  4. 8. The person who proposed the Theory of Continental Drift
  5. 9. Molten rock coming to the Earth's surface.
  6. 10. Instrument used to record earthquakes.
Down
  1. 1. The Earth's continents moving apart
  2. 3. Caused when tectonic plates suddenly move.
  3. 4. The movement of the molten rock in the mantle
  4. 5. Formed by lava coming from eruptions.