Across
- 5. densest part of the crust
- 6. a german scientist who proposed continental drift
- 8. made up of upper mantle and the crust
- 9. Rigid rocky layer
Down
- 1. one plate going under another
- 2. portion of the earth that makes land
- 3. all together
- 4. soft plastic like layer
- 7. theory that continents moved