1. Air Around Us
Oxygen is needed to support

2. •Observe what happens!

3. What happened?
Blue water rises

4. Respiration
Glucose + Oxygen
= Carbon Dioxide + Water
+ Energy
Similar Reaction!
Combustion
Carbon + Oxygen
= Carbon Dioxide + Energy

5. Carbon: Coal
Two types of fuel
Hydrocarbon: Candle

6. Combustion: Carbon
Oxygen Carbon Energy
+ =

7. Combustion: Hydrocarbon
Oxygen Carbon Hydrogen
+
= +

8. Combustion is a reaction where fuel
combines with oxygen and releases
carbon dioxide and heat energy.
Combustion requires oxygen to occur.
There are two types of fuel; carbon and
hydrocarbon.

9. Heat
Oxygen, O2

10. NOburn by itself?
Can oxygen
It requires fuel

11. Lesson Recap
Oxygen is needed to support

12. Lesson Recap
Oxygen + Carbon =
Carbon Dioxide + Energy

13. Lesson Recap
Oxygen + Hydrocarbon =
Carbon Dioxide + Water + Energy

14. Lesson Recap
Fire Triangle:
Fuel + Oxygen + Heat = Combustion