Fire and Fuels What is fire? How do we put fires out safely? Why are some fuels better than others? What impact does burning fuels have on the environment?

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Presentation transcript:

Fire and Fuels What is fire? How do we put fires out safely? Why are some fuels better than others? What impact does burning fuels have on the environment?

Fire and Fuels Key Learning Objectives: 1) What is fire? 2) How do we put fires out safely? 3) Why are some fuels better than others? 4) What impact does burning fuels have on the environment?

What is fire? How do we light a fire? How do you put a fire out?

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A fire needs 3 things: Fire 27/05/2016 Fuel Oxygen Heat The Fire Triangle

How would you put this fire out?

27/05/2016 When something is burned a chemical reaction occurs between the fuel and oxygen: Magnesium + oxygen Magnesium oxide Carbon + oxygen Carbon dioxide

Keywords: Combustion (burning) – A chemical reaction between a fuel and oxygen – Makes heat, light and other products Fuel – Any material that releases energy when burned Vapour – Many small particles of liquid in the air Ignition – starting combustion

Fuels 27/05/2016 A “fuel” is something that can be burned to release heat and light energy. The main examples are: Coal, oil and gas are called “fossil fuels”. In other words, they were made from fossils.

FIRE & FUELS: TRUE or FALSE? 1)A fuel always produces heat when it combusts 2)All fuels are solids 3)In a car, chemical potential energy in transformed into kinetic energy 4)A fuel, supply of oxygen and a source of ignition are needed for combustion 5)The source of oxygen for most combustion is the air 6)Most fuels are compounds containing carbon 7)The energy stored in nearly all fuels originally came from the moon TRUE FALSE, they can be gas and liquid also TRUE FALSE, came from the sun

Bill Nye - Fire Triangle (6min 43 sec)