Plate Motion 1

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