Earth's Outer Layer & Understanding Plate Boundaries

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Across
  1. 5. The place where two plates meet
  2. 6. When two plates collide and one is pushed under the other into the mantle, one of the plates is __________.
  3. 8. Any of the many processes (such as eruptions and lava flows) in which gas, lava, and ash are pushed out on the surface of Earth
  4. 10. Moving apart in different directions
  5. 12. A set of interacting parts forming a complex whole
  6. 13. Earth's plates _________ on top of Earth's mantle
  7. 14. a feature that forms of the surface of a planet such as a mountain, channel or sand dune
  8. 15. Moving to the same place
  9. 16. The layer of soft solid rock underneath Earth's plates
  10. 18. A diagram that shows what the inside of something looks like
  11. 20. To examine in detail with a purpose
Down
  1. 1. A sudden shaking of Earth's surface
  2. 2. A long deep indentation in the ocean floor formed when two plates move together
  3. 3. One of the very large sections of hard, solid rock that make up Earth's outer layer
  4. 4. The South American Plate and the African plate moved apart _______.
  5. 5. Something we observe to be similar over and over again
  6. 7. Powerful microphones that are built to travel underwater and scientists use to listen to plate motion
  7. 9. Plates move, which can _________ earthquakes
  8. 11. When two plates move apart the mantle comes up to fill the _____ creating new crust
  9. 13. An underwater mountain range formed when two plates move apart
  10. 16. An ancient lizard that lived about 300 million years ago and fossils have been found in Africa and South America
  11. 17. Earth's plates move on the mantle because it is made of _____, solid rock
  12. 19. Earth's outer layer is made of _______, solid rock