Across
- 3. When magma reaches the surface
- 5. where does seafloor spreading begin?
- 7. continents slowly moved over Earth's surface
- 9. What does the prefix Con mean?
- 12. One major belt of volcanoes
- 13. What boundary comes together?
- 14. What boundary slips past each other?
- 15. What does the prefix Di mean
Down
- 1. what boundary moves apart from each other?
- 2. Heat transfer by the movement of a fluid
- 4. Heat transfer by touching materials
- 6. transfer of energy
- 8. Who hypothesised that all continents were once together
- 10. Any trace of an ancient organism
- 11. The continents were joined in a supercontinent called...