Across
- 4. where plates move toward each other
- 5. the cycling of heat inside the earth
- 6. ancient continent
- 8. part of the upper mantle
- 9. a crack in the earths crust where plates move
Down
- 1. where one plate goes under the other and melts
- 2. where plates move away from each other
- 3. the idea of moving continents
- 7. rigid outer layer of the earth