Friday, September 11, 2009

Making compost with 8th grade Earth Science classes.

Today we ground up weed waste and vegetable peelings (pre-consumer) from the cafeteria. This gives us a nice green base for nitrogen, but comes out gooey and may clog the chipper/shredder. So we mix in brown carbon waste in the form of wood chips (from the tree trimmers that maintain campus trees), and we get a balanced and finely ground material to put in the compost bins for rapid decomposition. This composted plant food goes onto our raised bed gardens and the cycle is complete. Our 8th grade students learn firsthand of nature's processes. See the film and pictures.

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