Science project

1234567891011121314151617181920
Across
  1. 3. to examine for purpose.
  2. 4. the layer of soft solid rock underneath earth’s plates.
  3. 7. one of the hard sections made up of hard solid rock that make up earths outer layer.
  4. 11. any of the many processes in which gas lava and ash are pushed out onto the surface of earth.
  5. 13. how often or fact something happens.
  6. 15. Earth’s outermost layer of hard solid rock that is underneath soil,vegetation, and rock.
  7. 16. evidence of life from the past such as fossilized bones, footprints or leaf prints.
  8. 17. What boundary causes a trench to form?
  9. 18. the sudden pushing out of something such as lava from a volcano.
  10. 19. an underwater mountain range.
  11. 20. a long deep indentation in the ocean floor.
Down
  1. 1. The place were two or more plates meet.
  2. 2. it takes a short time for earths plates to travel, great distances, true or false.
  3. 5. the plates of earth outer layer move.
  4. 6. is molten rock called magma or lava when it’s underground?
  5. 8. what boundary causes a mid ocean ridge to form?
  6. 9. is molten rock called magma or lava after it breaks earth surface?
  7. 10. the sudden shaking of Earth’s surface
  8. 12. moving toward the same place.
  9. 14. moving apart in different directions.