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Coasts GI - Coggle Diagram
Coasts GI
Activity 1
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Sediment types and sizes
clay: less than 0.0039
silt: 0.0039-0.0625
fine sand: 0.125-0.5
coarse sand: 0.5-1
pebble: 2-64
cobble: 64-256
boulder: more than 256
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Safety precautions
- Check tide times before setting off
- Bring along handphones to call for help
- Stay in designated area and do not stray away
- Watch out for slippery rocks and wear shoes
- Stay in groups in case of emergency
- Keep away from base of overhanging cliff
Longshore drift
Test for theory of longshore drift taking place more often on unprotected shores more than protected ones
Drop an orange into the water at 4 sites 2 for protected and 2 for breakwater. Move the starting position with a ranging pole and measure distance within 3 minutes. Do it twice and record it down on a table
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