a diagram that shows what the inside of something looks like

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Across
  1. 1. moving apart in different directions
  2. 5. the place where two plates meet
  3. 6. something we observe to be similar over and over again
  4. 7. the layer of soft, solid rock underneath Earth’s plates
  5. 11. moving toward the same place
  6. 12. a feature that forms on the surface of a planet, such as a mountain, channel, or sand dune
  7. 13. hot liquid rock on the surface of Earth
  8. 15. a diagram that shows what the inside of something looks like
  9. 17. to examine in detail for a purpose
  10. 18. one of the very large sections of hard, solid rock that make up Earth’s outer layer
Down
  1. 2. a sudden shaking of Earth’s surface
  2. 3. evidence of life from the past, such as fossilized bones, footprints, or leaf prints
  3. 4. the sudden pushing out of something, such as lava from a volcano
  4. 8. hot liquid rock below the surface of Earth
  5. 9. an underwater mountain range formed when two plates move apart
  6. 10. an extinct reptile that lived about 300 million years ago
  7. 14. the slow pulling apart of land that is caused by plate movement
  8. 16. the outside or top layer of something