Properly Sort Your Trash

Confused about what goes in what trash bins at school, in the lunchroon, or at home? Watch our quick video demonstration by Lower School Science teacher, Elizabeth McDonald, to learn just how to sort your trash.
Ever wonder how long it takes for things to decompose in our landfills? Check out some of these crazy but true landfill facts:
  • Banana - 3 to 4 weeks
  • Paper Bag - 1 month
  • Cotton Rag - 5 months
  • Wool Sock - 1 year
  • Cigarette Butt - 2 to 5 years
  • Leather Boot - 40 to 50 years
  • Rubber Sole (of a boot) - 50 to 80 years
  • Tin Can (soup or vegetable can) - 80 to 100 years
  • Aluminum Can (soda pop can) - 200 to 500 years
  • Diaper - 500 years
  • Plastic 6-Pack Rings - 450 years
  • Plastic Jug - 1 million years
  • Styrofoam Cup - Unknown? Never?
  • Glass Bottle - Unknown? Never?
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Burke's mission is to educate, encourage and empower girls. Our school combines academic excellence with an appreciation for childhood so that students thrive as learners, develop a strong sense of self, contribute to community, and fulfill their potential, now and throughout life.

Katherine Delmar Burke School

An independent K–8 school for girls
7070 California Street, San Francisco, CA 94121
Phone: 415.751.0177 Fax: 415.666.0535
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