Across
- 2. underwater mountain chain formed as tectonic plates spread apart; wraps around the globe like the seam of a baseball
- 4. molten rock above the surface
- 5. is a famous supercontinent that existed about 225 million years ago and has since broken up
- 7. process where one tectonic plate moves under another tectonic plate and sinks into the mantle as they converge.
Down
- 1. crust making up the continents; thicker and less dense than oceanic crust
- 3. the pulling action exerted by the sinking (subducted) edge of a plate on the rest of the plate
- 6. what happens when two slabs of lithosphere suddenly slip past each other