Across
- 3. The process by which new oceanic crust forms along a mid-ocean ridge and older oceanic crust moves away from the ridge until it reaches a trench where it goes back towards the mantle and melts.
- 4. The boundary where two plates slide past each other
- 6. The rigid outermost rock layer made up of the crust and the solid, uppermost mantle
- 7. The circulation of material caused by differences in temperature and density
- 9. The process that occurs when a denser plate sinks below a less dense plate
- 10. The boundary where two plates are moving away from each other or separating
Down
- 1. The name given to a supercontinent that began to break apart approximately 200 million years ago
- 2. he movement of Earth’s continents over time
- 5. The mountain ranges in the middle of the oceans
- 7. The boundary where two plates are colliding or moving toward each other
- 8. The partially melted portion of the mantle below the lithosphere