key words Geography

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Across
  1. 3. frequency, how many waves there are in a given time limit eg one minute.
  2. 4. creep, A type of mass movement. Soil moves slowly down the slope under the influence of gravity and added weight from water creating ridges of soil
  3. 7. action , A type of erosion. The sheer power of the waves as they smash against the cliff. Air becomes trapped in the cracks in the rock and causes the rock to break apart.
  4. 8. A type of erosion. This is when pebbles grind along a rock platform, much like sandpaper. Over time the rock becomes smooth.
  5. 10. how far a wave has travelled
  6. 12. length, the distance between two successive crests or troughs of a wave
  7. 13. height, the difference in height between the crest and the trough of a wave.
  8. 17. The movement of sediment within moving water.
  9. 19. A type of transportation. Boulders and pebbles are rolled along the sea bed.
  10. 21. , A type of erosion. This is when rocks that the sea is carrying knock against each other. They break apart to become smaller and more rounded.
  11. 22. , A type of transportation. Sand sized particles are bounced along the sea bed by the flow of water.
  12. 23. The wearing away of rock by moving forces (such as water)
  13. 26. A type of transportation. Fine clay and sand particles are carried along within the water.
  14. 29. the bottom of a wave
  15. 30. wave, A higher wave with a stronger backwash than swash.
Down
  1. 1. weathering, One example is freeze thaw. Water enters a crack in a rock, freezes and expands overnight then melts in the morning. This process repeats and eventually the rock will break apart.
  2. 2. weathering, Plants and animals weaken the structure of the rock until it breaks away. Roots can grow into cracks or animals can burrow.
  3. 5. the top of a wave
  4. 6. The breaking down of rocks in situ.
  5. 9. weathering, Rainwater and seawater can be a weak acid. If they contact rock the acid in the water can dissolve it.
  6. 11. – waves moving back down the beach
  7. 14. movement - The downhill movement of rock and soil because of gravity
  8. 15. A type of transportation. Some minerals dissolve in water. This requires very little energy.
  9. 16. cliff slumping, A type of mass movement. Slump of saturated (full of water) soil and weak rock along a curved surface
  10. 18. Fall, A type of mass movement. The rapid, free-fall of rock from a steep cliff face. Rocks will be loose due to weathering on the cliff face.
  11. 20. A type of mass movement. Large blocks of rock slide downhill
  12. 24. wave, A low wave with a stronger swash than backwash.
  13. 25. Shore Drift, Large scale movement of sediment along a coastline in a zig zag fashion.
  14. 27. waves moving up the beach
  15. 28. or Corrosion, A type of erosion. This is when sea water dissolves certain types of rocks.