Last year, with the help of a few parents, the 3rd/4th graders built a vermi-composting bin--a compost system that uses worms to eat our food scraps! On Friday, our 10,000 worms arrived and our new students were able to set the bin up and get their hands dirty. The photos above show students weighing our worms, laying down paper/straw bedding, adding food scraps, and covering everything with moist newspaper. The 3/4 classes are responsible for taking care of this living system all year. Through this process, students learn about biological decomposition, nitrogen/carbon cycles, the importance of micro-organisms, and more! The big idea is to show students how to create closed-loop cycles--why waste the energy held in our food scraps by putting them in a landfill when we can harvest that energy to create more food?
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