Across
- 4. - the edges where two plates meet
- 6. - second layer
- 7. - moving or extending in different directions from a common point
- 9. -the relatively thick part of the earth's crust that forms the large landmasses
- 10. - tending to move toward one point or to approach each other
Down
- 1. - the rigid outer part of the earth, consisting of the crust and upper mantle
- 2. - outer layer
- 3. - a large steep hill
- 5. - a sudden and violent shaking of the ground, sometimes causing great destruction
- 8. - a solid ball of metal