Plate Motion

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Across
  1. 2. an object, diagram, or computer program that helps us understand something by making itsimpler or easier to see
  2. 6. a feature that forms on the surface of a planet, such as a mountain, channel, or sand dune
  3. 8. moving toward the same place
  4. 12. something we observe to be similar over and over again
  5. 14. to examine in detail for a purpose
  6. 16. an underwater mountain range formed when two plates move apart
  7. 18. any of Earth’s main continuous areas of land, such as Africa, Asia, and North America
  8. 20. a sudden shaking of Earth’s surface
  9. 21. an extinct reptile that lived about 300 million years ago
  10. 24. the slow pulling apart of land that is caused by plate movement
  11. 27. the outside or top layer of something
Down
  1. 1. moving apart in different directions
  2. 3. Earth’s outermost layer of hard, solid rock that is underneath the soil, vegetation,and water
  3. 4. activity 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. 5. the place where two plates meet
  5. 7. the moment when two objects hit each other
  6. 9. the layer of soft, solid rock underneath Earth’s plates
  7. 10. hot liquid rock below the surface of Earth
  8. 11. a long, deep indentation in the ocean floor formed when two plates move together
  9. 13. one of the very large sections of hard, solid rock that make up Earth’s outer layer
  10. 15. a set of interacting parts forming a complex whole
  11. 17. hot liquid rock on the surface of Earth
  12. 19. evidence of life from the past, such as fossilized bones, footprints, or leaf prints
  13. 22. how often or fast something happens
  14. 23. a diagram that shows what the inside of something looks like
  15. 25. a natural spring that sends hot water and steam suddenly into the air from a hole in the ground
  16. 26. the sudden pushing out of something, such as lava from a volcano