Chika's crossword

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Across
  1. 4. The movement of material along a coast by waves
  2. 7. Larger in height and more energy
  3. 9. When plants and animals break into cracks in rocks
  4. 10. Moves sediment up the beach at an angle
  5. 11. Drags sediment straight down the beach
  6. 13. The most common wind direction
  7. 15. When certain types of cliff erode
Down
  1. 1. The wearing away of coastal rock
  2. 2. Water trickles into cracks, freezes and expands
  3. 3. The process of rocks and pebbles bumping into each other
  4. 5. When waves pick up beach materials
  5. 6. Rock reacts with air and water
  6. 8. When water picks up sediments and moves them
  7. 12. Beach material like small stones
  8. 14. When rock starts disappearing after a period of time