Foundations of Geology Crossword

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Across
  1. 3. A sudden shaking in the ground that causes major destruction.
  2. 5. The lower boundary of earths crust.
  3. 8. The machine used to record and measure earthquakes.
  4. 9. A downward moving fold.
  5. 10. The middle layer of the earth.
  6. 12. The study of volcanoes.
Down
  1. 1. The outermost layer of the earth.
  2. 2. Plates on the earth's crust that move and cause trenches and mountains.
  3. 4. A upward moving fold.
  4. 6. The center most layer of the earth.
  5. 7. A boundary between stationary rocks and moving rocks.
  6. 11. The molten rock that flows from volcanoes.