Across
- 3. A canyon on the ocean floor at which the crust bends downward
- 5. A chain of underwater mountains along which sea-floor spreading occurs
- 7. type of plate boundary when two plates are moving toward each other
- 9. made by convergent plate boundaries.
- 10. crack in the earth
Down
- 1. type of plate boundary when two plates are moving away from each other.
- 2. occur at transform plate boundaries.
- 4. when hot magma rises and cooler magma sinks
- 6. when a piece of the crust sinks under another piece of the crust
- 8. type of plate boundary when the plates move along next to each other