Across
- 4. a theory explaining the structure of the earth's crust which move slowly over the underlying mantle.
- 8. the third layer of the earth
- 10. the inner most layer of the earth
Down
- 1. the outer most layer of the earth
- 2. two plates growing apart
- 3. the second layer of the earth
- 5. one plate going underneath another plate
- 6. the scientist who proposed the theory of continental drift
- 7. two plates sliding past eachother
- 9. two plates coming together, closer