Video Link

Describe Nitrogen Cycle-Nitrogen cycle in simple terms

We can not just breathe in nitrogen and use it in our body like oxygen.
Instead, we must get our nitrogen from the food we eat.
Fortunately, we have bacteria that help recycle this nitrogen and put the nitrogen into a form we can use and ensures we won't run out of nitrogen.
Key Terms: Denitrification, nitrogen fixation,ammonification,nitrite,nitrate

Nitrogen Cycle
http://www.moomoomath.com/nitrogen-cycle.html

Nitrogen Cycle ,Nitrogen Fixation - Explanation in animation
https://www.youtube.com/watch?v=ZaFVfHftzpI&t=146s

Biogeochemical Cycles
https://www.youtube.com/watch?v=Bn41lXKyVWQ

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For more Life Science videos and summaries see,
http://www.moomoomath.com/Middle-School-Science-and-Biology.html