1. From: Sofia Kyriacou And Vivian Trisokka
THE LIFE OF A PEBBLE
From:
Sofia Kyriacou
And
Vivian Trisokka

2. 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

3. 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

4. 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.

5. Solution
Solution is formed when sea water is slightly acidic and dissolves soluble material from the rock.
Makes pebbles weaker.

6. THE END