Across
- 2. when one plate moves under the other.
- 3. the layers on the earth.
- 6. the gas all around the earth.
- 8. how fast or often something happens.
- 10. a long deep indention in the ocean floor.
- 12. the outside or top layer of something.
- 14. A solid substance with crystal structure.
- 15. moving apart in different directions.
- 16. A planet with layers and crusts.
- 18. hot liquid rock on Earth.
- 19. seven plates on top of the earth.
- 21. any of earths lands.
Down
- 1. earths living organisms.
- 4. All of earths water.
- 5. the layer of soft solid rock under Earth.
- 7. a feature that forms on the surface of a planet.
- 9. Fossilized evidence of life from the past.
- 11. a sudden shaking on earth surface.
- 13. the study of rocks.
- 17. A plate under the earth’s surface.
- 20. one of the large rock sections that make earth.