Understanding the Fire Triangle, Combustion, and the Global Carbon Cycle

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Oxygen
  +       
Fuel
        +         
heat
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Oxygen
  +       
Fuel
        +         
heat
                       Carbon dioxide +   Water   +   Heat & Light
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Oxygen
  +       
Fuel
        +         
heat
                       Carbon dioxide +   Water   +   Heat & Light
       
O
2
           
+ 
C&H atoms  
+         
heat
                             CO
2                   
+    H
2
O     +   Heat & Light
       
O
2
           
+    
C
6
H
12
O
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+         
heat
                             CO
2                   
+    H
2
O     +   Heat & Light
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Oxygen
  +       
Fuel
        +         
heat
                       Carbon dioxide +   Water   +   Heat & Light
       
O
2
           
+ 
C&H atoms  
+         
heat
                             CO
2                   
+    H
2
O     +   Heat & Light
 
       
O
2
           
+    
C
6
H
12
O
6
    
+         
heat
                             CO
2                   
+    H
2
O     +   Heat & Light
 
     
6
O
2
           
+    
C
6
H
12
O
6
    
+         
heat
                             6CO
2                
+  6H
2
O     +   Heat & Light
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C
6
H
12
O
6
  + 6O
2  
+  a little heat/light         6CO
2  
 +  6H
2
O  +  a lot of heat/light
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C
6
H
12
O
6
  + 6O
2  
+  a little heat/light         6CO
2  
 +  6H
2
O  +  a lot of heat/light
 
R
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s
p
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r
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:
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C
6
H
12
O
6
  + 6O
2  
+  a little heat/light         6CO
2  
 +  6H
2
O  +  a lot of heat/light
 
R
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:
 
 6CO
2       
+    6H
2
O     +   sunlight                       C
6
H
12
O
6
  +    6O
2
 
Photosynthesis:
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Combustion
 
 
Respiration
 
 
Photosynthesis
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The Global Carbon Cycle
 
Respir-
ation
 
Photosynthesis
 
Plants also do cellular
respiration
 
Combustion
 
Fungi are
doing
cellular
respiration
 
Roots do cellular
respiration too
 
Decomposers are also doing cellular respiration
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Slide Note

Procedure – part 1.

Explain: We’ve been studying the Fire Triangle and the process of combustion.

Let’s explore combustion a little more deeply and then fit it in with the basic life processes on Earth, as described in the Global Carbon Cycle.

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This series of images explores the concepts of the fire triangle, combustion, and the global carbon cycle. It delves into the role of oxygen, fuel, and heat in combustion processes, leading to the production of carbon dioxide, water, heat, and light. The images further illustrate the chemical processes involved in combustion, respiration, and photosynthesis, highlighting the interconnectedness of these processes within the global carbon cycle.


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  1. The Fire Triangle, Combustion, and the Global Carbon Cycle

  2. Oxygen + Fuel + heat

  3. Oxygen + Fuel + heat Carbon dioxide + Water + Heat & Light

  4. Oxygen + Fuel + heat Carbon dioxide + Water + Heat & Light O2 + C&H atoms + heat CO2 + H2O + Heat & Light O2 + C6H12O6 + heat CO2 + H2O + Heat & Light

  5. Oxygen + Fuel + heat Carbon dioxide + Water + Heat & Light O2 + C&H atoms + heat CO2 + H2O + Heat & Light O2 + C6H12O6 + heat CO2 + H2O + Heat & Light 6O2 + C6H12O6 + heat 6CO2 + 6H2O + Heat & Light

  6. The Fire Triangle, Combustion, and the Global Carbon Cycle

  7. Combustion: C6H12O6 + 6O2 + a little heat/light 6CO2 + 6H2O + a lot of heat/light & many other C-H combinations

  8. Combustion: C6H12O6 + 6O2 + a little heat/light 6CO2 + 6H2O + a lot of heat/light & many other C-H combinations Respiration: C6H12O6 + 6O2 + a little heat/light 6CO2 + 6H2O + a lot of heat/light

  9. Combustion: C6H12O6 + 6O2 + a little heat/light 6CO2 + 6H2O + a lot of heat/light & many other C-H combinations Respiration: C6H12O6 + 6O2 + a little heat/light 6CO2 + 6H2O + a lot of heat/light Photosynthesis: 6CO2 + 6H2O + sunlight C6H12O6 + 6O2

  10. Combustion Respiration Photosynthesis

  11. The Global Carbon Cycle Combustion Plants also do cellular respiration Photosynthesis Roots do cellular respiration too Respir- ation Fungi are doing cellular respiration Decomposers are also doing cellular respiration

  12. http://digitalcommons.unl.edu/assets/md5images/1fa74c6d66aa469964da5771804c77fe.gifhttp://digitalcommons.unl.edu/assets/md5images/1fa74c6d66aa469964da5771804c77fe.gif

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