Video

The Carbon and Nitrogen Cycles

Biogeochemical cycles trace the movement of matter and nutrients through living organisms (“bio-“), planetary systems (“geo-“) and chemical reactions (“chemical”) throughout every part of Earth. The carbon cycle and the nitrogen cycle are possibly the 2 most important biogeochemical cycles on Earth. Here are a few fun videos to help you learn about these two essential cycles in our study of life and ecology.

First, a nice explanation of the carbon cycle:

Second, a little carbon music video:

Third, click on this link to BBC Bitesize Science for a very well-thought-out activity about the carbon cycle. It incorporates photosynthesis, respiration, biological molecules, and trophic levels.

Fourth, this animated tutorial found at W.H. Freeman thoroughly explains each step in the nitrogen cycle. While not super exciting, it’s well-done and includes a brief 3-question quiz.

Fifth, CrashCourse Science at YouTube offers us this entertaining and educational video about the nitrogen and phosphorus cycles (You don’t have to know about the phosphorus cycle in this class, but it’s helpful if you take more advanced biology courses):

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