Across
- 3. to examine for purpose.
- 4. the layer of soft solid rock underneath earth’s plates.
- 7. one of the hard sections made up of hard solid rock that make up earths outer layer.
- 11. any of the many processes in which gas lava and ash are pushed out onto the surface of earth.
- 13. how often or fact something happens.
- 15. Earth’s outermost layer of hard solid rock that is underneath soil,vegetation, and rock.
- 16. evidence of life from the past such as fossilized bones, footprints or leaf prints.
- 17. What boundary causes a trench to form?
- 18. the sudden pushing out of something such as lava from a volcano.
- 19. an underwater mountain range.
- 20. a long deep indentation in the ocean floor.
Down
- 1. The place were two or more plates meet.
- 2. it takes a short time for earths plates to travel, great distances, true or false.
- 5. the plates of earth outer layer move.
- 6. is molten rock called magma or lava when it’s underground?
- 8. what boundary causes a mid ocean ridge to form?
- 9. is molten rock called magma or lava after it breaks earth surface?
- 10. the sudden shaking of Earth’s surface
- 12. moving toward the same place.
- 14. moving apart in different directions.