The Life of a Pebble: Coastal Erosion Processes
Follow the journey of a pebble through hydraulic action, abrasion, attrition, solution, and more as it transforms along the coastline. Vibrant images and insightful descriptions depict the forces of nature that shape these humble stones.
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Presentation Transcript
THE LIFE OF A PEBBLE From: Sofia Kyriacou And Vivian Trisokka
Hydraulic action This action is formed when the waves force the water into cracks in the rock.That helps to break it. The pebble is sharp and has an angular shape
Abrasion action This action is happened when waves throw sand and pebbles against the rock.These wear it away like sandpaper. This pebble is smooth and rounded
Attrition This action is forced when chunks of rock gets knocked together and worn into smaller and smaller bits.The end up as shingle and sand.
Solution Solution is formed when sea water is slightly acidic and dissolves soluble material from the rock. Makes pebbles weaker.
