Marine Debris Trash Timeline

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Marine DebrisTrash Timeline
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How long does debris persist in the environment?
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Trash timeline activity

• Order the items according to what you think
  breaks down first to things that take the longest
  
• Draw a timeline on your desk and place your items
  on the timeline

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Use the data below to draw a trash timeline in
your notebook
Source US EPA, US Forestservice Time estimates
vary between different sources
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Lets start by making 25 cm represent 500 years
Drawing a timeline to scale in your notebook
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Draw a timeline to scale

• How many cm represent 100 years?
• How many cm represent 50 years?
• What about 10 years?
• Use the datasheet (and given times) to draw the
  items on your timeline

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Look at your timeline

• Mark all the plastics
• What do you notice?
• In your notebook write a brief paragraph on what
  you found out about marine debris and what you
  can do to avoid creating more marine debris.

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What your timeline should look like
paperbag
6-pack ring
styrofoam
milk carton
aluminum can
plastic bottle
monofilament fishing line
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What you can do

• Recycle
• Reduce your use of plastic products
• Coastal Cleanup Day