continental drift

2. Oceanic plates sinking beneath continental plates
7. The rigid outer layer of the earth that includes the crust and the upper mantle
8. The earths outermost layer, including the continents
9. The semi-fluid layer beneath the earth's lithosphere
11. A boundary where the tectonic plates move toward each other
12. The current supercontinent formed by the collision of continents
15. The various pieces of evidence that support the continental drift theory

1. The original name for the concept that later became known as continental drift
3. the slow moving of masses of solid rock within the earth's mantle
4. where the tectonic plates move apart
5. A boundary where tectonic plates move toward each other
6. the process in how the continents move over the time
10. The largest mountain range on earth that form a divergent boundary
13. the super continent that exist millions of years ago
14. who proposed the theory of continental drift