Across
- 4. A long, deep indentation
- 6. The layer of soft, solid rock underneath Earth’s plates.
- 7. To examine in detail for a purpose.
- 8. Moving apart in different directions
- 9. The sudden shaking of Earth’s surface.
Down
- 1. One of the very large sections of hard, solid rock that make up Earth’s outer layer.
- 2. Something we observe to be similar over and over again.
- 3. How often or fast something happens.
- 5. Moving toward the same place.