Across
- 4. the boundary when plates move along each other
- 5. the boundary when plates move away from each other
- 7. a former supercontinent
- 9. the part of earth which consists of molten rock
Down
- 1. the solid part in the centre of the earth
- 2. the boundary when one plate slides under another
- 3. the thin outer part of the earth floating on molten lava
- 6. a scientist studying earthquakes
- 8. a moving fluid mass composed of volcanic debris and lava