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Biogeochemical Cycles and the Nitrogen Cycle
Presentation
•
Science
•
9th Grade
•
Practice Problem
•
Medium
+11
Standards-aligned
Alexandra Adams
Used 10+ times
FREE Resource
11 Slides • 7 Questions
1
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Multiple Choice
What is the definition for Biogeochemical Cycles?
The process of photosynthesis and respiration in plants.
A pathway for chemicals necessary for life to move through the environment.
The movement of energy through living organisms in an ecosystem.
The study of the interactions between organisms and their environment.
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Why is atmospheric nitrogen unusable to most living organisms?
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Multiple Choice
What is the difference between nitrogen-fixing bacteria and ammonifying bacteria?
Nitrogen-fixing bacteria convert atmospheric nitrogen to ammonia, while ammonifying bacteria convert organic nitrogen from once living organisms to ammonia.
Nitrogen-fixing bacteria convert ammonia to nitrogen gas, and ammonifying bacteria convert atmospheric nitrogen to nitrates.
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Multiple Choice
In which step of the nitrogen cycle do bacteria convert nitrogen-containing molecules back into atmospheric nitrogen?
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Match
Match the following
Nitrogen Fixation
Nitrification
Ammonification
Denitrification
Bacteria fix N2 into NH3
Bacteria change NH3 & NH4 into NO3 & NO2
Decomposers change N into NH3 or NH4
Bacteria make atmospheric N2
Bacteria fix N2 into NH3
Bacteria change NH3 & NH4 into NO3 & NO2
Decomposers change N into NH3 or NH4
Bacteria make atmospheric N2
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Labeling
Label the organisms that are part of the Nitrogen Cycle!
Nitrifying Bacteria
Nitrifying Bacteria
Denitrifying Bacteria
Decomposers
Nitrogen-Fixing Bacteria
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Multiple Choice
Which of the following is not a reason why Nitrogen is important?
Nitrogen is a vital nutrient for plants and animals.
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Open Ended
How are humans impacting the nitrogen cycle?
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