Across
- 2. when one plate is more dense than the other
- 4. 2 plates move away from each other
- 6. molten rock
- 8. 2 plates slide sideways
Down
- 1. 2 plates come together
- 3. seafloor mountain system formed by plate tectonics.
- 5. When the lava cools and hardens, it forms into a cone-shaped mountain
- 7. form at the boundary of tectonic plate
- 9. a lowland region that forms where Earth's tectonic plates move apart
- 10. tectonic plates split apart from each other