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The Nitrogen Cycle

16 minutes

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Closeup of several bright green leafy plants sprouting in soil.

Nitrogen is important to all living things. Explores how plants and animals get it and differentiates between the essential "fixed" and unuseable "free" nitrogen. Explains how nature plays a role in combining nitrogen with other elements to produce "fixed" nitrogen. Presents the nitrogen cycle and mentions causes and effects of nitrogen pollution. Ends with a quiz.

Media Details

Runtime: 16 minutes

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Viewer Comments

  • Tiny default profile photo
    JOHN K. (Bloomfield Hills, MI)
    March 12th, 2015 at 02:23 PM

    The streaming version would be nice and more convenience.