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Waves and Cliffs

Waves and Cliffs. Aim: to understand different types of waves and how cliffs disappear. What's the difference? In your books write down 3 differences you can see from these pictures. http://whs.moodledo.co.uk/file.php/1365/Coastal%20Systems/Wave%20Motion.swf

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Waves and Cliffs

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  1. Waves and Cliffs Aim: to understand different types of waves and how cliffs disappear

  2. What's the difference? • In your books write down 3 differences you can see from these pictures

  3. http://whs.moodledo.co.uk/file.php/1365/Coastal%20Systems/Wave%20Motion.swfhttp://whs.moodledo.co.uk/file.php/1365/Coastal%20Systems/Wave%20Motion.swf • http://www.curriculumbits.com/prodimages/details/geography/geo0003.html

  4. Constructive Waves Spilling Breaker Powerful Swash Weak Backwash  Tom Abbott, Biddulph High School and made available through www.sln.org.uk/geography and only for non commercial use in schools

  5. Destructive Waves Crashing breaker Weak swash Powerful Backwash  Tom Abbott, Biddulph High School and made available through www.sln.org.uk/geography and only for non commercial use in schools

  6. Constructive and Destructive Waves • Copy the 2 diagrams and label the keywords. Keywords: Strong Backwash, Coastline, Strong swash, Weak swash, Weak Backwash, build up and deposit sediment, beach eroded, Coastline. • EXT: Which beach would you sunbathe on and why?

  7. Wave Cut Platform

  8. Cliff line Joints and beds allow waves to attack the cliff more easily HIGH TIDE LEVEL Waves can use rocks to erode the cliff Wave cut platform Wave cut notch  Tom Abbott, Biddulph High School and made available through www.sln.org.uk/geography and only for non commercial use in schools

  9. The force of the waves pushes air into cracks in the rock The compressed air exerts enormous pressure at the tip of the crack. As the water falls back the air pressure is released and rock is pulled out from the crack further enlarging the hole.  Tom Abbott, Biddulph High School and made available through www.sln.org.uk/geography and only for non commercial use in schools

  10. Wave-cut platform Wave built terrace Ouch! large angular rocks rocks and pebbles soft sand  Tom Abbott, Biddulph High School and made available through www.sln.org.uk/geography and only for non commercial use in schools

  11. ExL • What is longshore drift? • Don’t copy and paste • Images • Diagram • Description in your OWN WORDS

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