SCIENCE OUTPUT #3

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Across
  1. 4. a piece of land surrounded by water
  2. 6. pure substance which cannot be broken down by chemical means
  3. 7. branch of science concerned with metals
  4. 11. a linear feature that exists between two tectonic plates that are moving away from each other
  5. 13. sideways and downward movement of the edge of a plate of the earth's crust
  6. 15. a solid inorganic substance of natural occurrence
  7. 16. a large natural elevation of the earth's surface rising abruptly from the surrounding level
  8. 19. a mountain or hill having a crater or vent where lava will be erupted
  9. 22. a line or series of mountains or hills
  10. 23. solid outer part of the Earth
  11. 24. a long high sea wave caused by an earthquake a sudden and violent shaking of the ground
  12. 25. to change in composition or structure
  13. 26. geological structural features as a whole
  14. 28. a limit of a subject or sphere of activity
  15. 29. the pointed top of a mountain.
Down
  1. 1. any naturally occurring solid mass or aggregate of minerals or mineraloid matter
  2. 2. a planar or gently curved fracture
  3. 3. the central part of something
  4. 5. an act or instance of colliding
  5. 8. nearly incompressible fluid
  6. 9. the fragmental material composing part of the surface of the globe
  7. 10. undersea mountains formed by volcanic activity
  8. 12. hot semifluid within the earth's crust
  9. 14. area on Earth where two or more lithospheric plates collide
  10. 17. type of excavation or depression in the ground
  11. 18. astronomical body orbiting a star
  12. 20. thick part of the earth's crust
  13. 21. instrument that measures details of earthquakes
  14. 27. made up or consisting of two or more existing parts or elements