Across
- 2. a break in the earths crust that moves
- 5. Hess credited with the theory of Plate Tectonics
- 6. Boundary when two plates pull apart
- 9. Boundary when two plates come together
- 10. of Continental Drift Theory that continents move due to a force
Down
- 1. Wegener credited with the theory of Continental Drift
- 3. large supercontinent that existed 250 million years ago
- 4. large pieces of earths crust that move due to convection currents
- 7. Boundary when two plates grind past each other
- 8. depression formed at a subduction zone