Across
- 6. circulatory patterns of heat in the magma believed to be the driving force behind plate movement.
- 8. V-shaped valleys that are the deepest parts of the oceans where subduction occurs.
- 9. the movment of the ocean floor at a divergent
- 10. ocean split down the middle by a big crack
Down
- 1. a type of plate boundary where the plates slowly move apart from each other.
- 2. the process in which the crust pushes downward into the mantle at a fault line.
- 3. earths crust the slowly moves
- 4. the remains of ancciant living animals
- 5. plate boundary where the plates slowly collide together
- 7. the uppermost solid part of the earths crust