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Natural Cycles 1

Natural Cycles 1

Author: Mike Farrell


Raw materials that make up living organisms are constantly recycled between the living and non-living parts of our biosphere. This recycling process is called a natural cycle. Carbon, nitrogen, oxygen, and water are four important cycles.
Your objectives in these learning packets:
  • Read about and view models of the water, nitrogen, carbon and oxygen cycles.
  • Do a focused study of one of the cycles.
  • Take notes.
  • Complete a final project, a summary of what you have learned.
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Day 1: General Study of the Carbon, Water, Nitrogen, and Oxygen Cycles (45 min.)

  • Learn how carbon, nitrogen, oxygen, and water are recycled.
  • Plan your time so that you can learn something about each cycle
  • After your study, decide on which cycles you want to know more about.
  • Use these links:



Environmental Recycling