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Nitrogen Cycle Video Worksheet

 

1)      Define or describe the following terms as you watch the video.

A)    Nitrogen:

 

B)     Nitrogen cycle

 

C)    Amino acids

 

D)    Nitrogen fixing

 

E)     Legumes

 

F)     Compound

 

G)    Nodules

 

H)    Nitrifying bacteria

 

I)       Denitrifying

 

J)       Fossil fuel

 

K)    Acid rain

 

 

2)      What role do legumes play in the nitrogen cycle?

 

 

 

 

3)      Describe how excess nitrogen from agriculture can kill fish.

 

 

 

 

4)      Why is fixed nitrogen important?

 

 

 

 

 

5)      What role does decay (decomposition) play in the nitrogen cycle?