Nitrogen Fixation
Chapter Name : Microorganisms: Friend And Foe |
Sub Topic Code : 103_08_02_04_01 |
Topic Name : Nitrogen Fixation |
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Sub Topic Name : Nitrogen Cycle |
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Introduction
Nitrogen and oxygen react with each other at high temp and pressure to form nitrogen dioxide and other nitrogen compounds.
Pre-Requisites:
Nitrogen cycle, Nitrogen fixation, Nitrates and Ammonia used as fertilizer.
Activity:
How ammonia formed during the process is used as fertilizer.
Real Life Question:
How is nitrogen dioxide, nitric acid and nitrous oxide formed in nature?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Nitrogen dioxide | When nitrogen and oxygen react in air in presence of high temp and pressure |
| Nitric acid | When nitrogen dioxide reacts with water in rain |
| Ammonia | Nitrogen fixing bacteria take nitrogen from air and form ammonia |
| Nitrous oxide | De -nitrification takes place in soil which converts nitrates into nitrogen gas, side product is nitrous oxide. |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| Laughing gas | Laughing gas also called as nitrous oxide is formed as side product during de-nitrification process. |
Real life uses :
Nitrous oxide also called laughing gas used by people to make them laugh.
Places to visit :
Factories or farms where ammonia is further processed so that it can be used as fertilizer.
Practical examples around us
| Examples | Explainations |
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What you learn in Theory:
What is Nitrogen cycle and the products formed during this cycle.
What you learn in Practice:
How products of Nitrogen cycle used as laughing gas and fertilizers.