Across
- 2. Earth's tectonic plates dive back into the mantle
- 4. seafloor mountain system formed by plate tectonic
- 5. heat-driven cycles in the mantle
- 6. openings, or vents where lava, tephra, and steam erupt onto the Earth's surface
- 10. plates slide sideways past each other
Down
- 1. When two plates come together
- 3. plates that move away from each other.
- 7. forms at a geographical crack or separation
- 8. hot liquid located under Earth's surface
- 9. a deep and narrow hole, or ditch