Fire Extinguisher Model | ThinkTac | Science Experiments

Описание к видео Fire Extinguisher Model | ThinkTac | Science Experiments

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. Fires kill more than a hundred thousand people every year worldwide. The numbers would be far higher were there no fire extinguishers and fire persons to deal with them. How are they extinguished? What can be done to save more lives, if help is not near at hand? Fire requires 3 key ingredients: material to burn, oxygen and an initial temperature high enough to ignite the material. Take any one of these 3 out, and you have yourself a potentially effective fire extinguisher. In this experiment, we produce carbon dioxide using a classic reaction, and use that to douse a candle flame by literally "pouring" it over the flame.
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