Across
- 6. Where two plates spread apart from each other.
- 7. The idea that the earth's crust is made up of large pieces, called plates, that have moved over time.
- 10. The idea the continents were once joined together to form a single large continent.
- 12. Where two plates collide.
- 13. The process of one plate moving below another plate.
Down
- 1. Where two plates slide past each other.
- 2. The idea that the continents were once joined in a single land mass that eventually broke apart into pieces that slowly moved away from each other.
- 3. A process that occurs at mid-ocean ridges, where oceanic crust is formed through volcanic activity and then gradually moves away from the ridge.
- 4. A long, steep valley formed when two parallel rifts form in the Earth's crust and the land between them sinks.
- 5. The process where when new rock is formed at the mid-ocean ridge, it is affected by the polarity of the earth's magnetic field causing a pattern of parallel magnetic "strips".
- 8. A deep ditch; found at a subduction zone.
- 9. A huge crack in the crust where the hot mantle pushed upward.
- 11. Is a fixed area of the mantle that is so hot that magma rises through the lithosphere above it.