Plate Tectontics / Faults Crossword Puzzle by Mollie Garris

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Across
  1. 2. Secondary waves cannot move through _______________.
  2. 7. A theory stating that the earth's surface is _______ into plates that move.
  3. 8. _________ _________occurs when rocks push together until they force a section of rock upward.
  4. 11. Scientist believe that the Earth is made up of _______ that float on the partly melted rock of Earth's mantle.
  5. 13. The ________ where two tectonic plates are in contact is a plate boundary.
  6. 16. Reverse plate boundaries push __________ forcing rock upward.
  7. 17. _______ _________occurs when rocks move apart, a section of rock may fall between the separating rocks.
  8. 18. Faults are __________ in the earth's surface along which rock can move.
  9. 19. Breaks in the earth's surface along which _______ can move.
  10. 20. Primary waves can move through both __________ and liquids.
Down
  1. 1. _________ ____________move quickly.
  2. 3. A _________________ is used to detect, time, and measure the movements of the earth.
  3. 4. another name for a reverse fault.
  4. 5. Strike-slip plate boundaries move ________ past each other.
  5. 6. Primary waves travel in a _________ path.
  6. 9. Large pieces that float on the partly melted rock in the earth's mantle.
  7. 10. ________ _ _______ ________ occurs as rocks move horizontally past each other.
  8. 12. ___________ wave moves slowly.
  9. 14. Normal plate boundaries move apart forming a ________.
  10. 15. The crust and the top part of the mantle are broken into giant pieces of rock called __________ __________.
  11. 21. Secondary waves travel in a up and ________ zigzag motion.