Earth Science Vocabulary Crossword Puzzle

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Across
  1. 4. a ridge of sediment that is built to control flooding onto land (that is below sea level)
  2. 5. boundaries that slide past each other and create earthquakes
  3. 7. a structure built at right angles to a beach to prevent beach erosion
  4. 8. a device that is used to measure and predict earthquakes, volcanoes, and tsunamis
  5. 12. the sudden movement of rock downhill because of gravity
  6. 13. a wide, flat area that is formed when a river overflows onto the land and drops sediment
  7. 14. forces that build up the earth
  8. 15. plowing a method that farmers use to prevent erosion of topsoil
  9. 16. a structure built parallel to a beach to prevent erosion and weathering
  10. 18. rock, dirt, soil, sand
  11. 19. a structure built across a river to control flooding
  12. 20. forces that destroy the earth
  13. 21. a ridge of rock and soil that is deposited when a glacier melts
  14. 22. nourishment a method used to build up beaches again after they have eroded away
Down
  1. 1. a break at the earth's crust that causes an earthquake
  2. 2. a method that farmers use to prevent erosion of topsoil (looks like stairs)
  3. 3. the dropping of sediment
  4. 6. the movement of sediment from one place to another
  5. 9. the force that pulls all object towards the earth
  6. 10. a landform that is created at the mouth of a river as the river flows into a larger body of water
  7. 11. a large, slow moving piece of ice
  8. 14. boundaries that come together in order to form mountains
  9. 17. the breakdown of rock
  10. 19. boundaries that move apart and form volcanoes