Across
- 4. an actively deforming region where two (or more) tectonic plates or fragments of the lithosphere move toward one another and collide
- 6. a long high sea wave caused by an earthquake, submarine landslide, or other disturbance
- 7. states that parts of the Earth's crust slowly drift atop a liquid core
- 11. a process that occurs at mid-ocean ridges, where new oceanic crust is formed through volcanic activity and then gradually moves away from the ridge
Down
- 1. plates are coming apart
- 2. divergent, convergent, and transform
- 3. a massive, irregularly shaped slab of solid rock, generally composed of both continental and oceanic lithosphere
- 5. a long, narrow ditch
- 7. the theory that the outer rigid layer of the earth (the lithosphere) is divided into a couple of dozen "plates" that move around across the earth's surface relative to each other
- 8. the concerted, collective movement of groups
- 9. plates slide past each other
- 10. the result of a sudden release of energy in the Earth's crust
- 11. the process that takes place at convergent boundaries by which one tectonic plate moves under another tectonic plate and sinks into the mantle as the plates converge
- 12. running along the Mid Atlantic Ridge