This week, we will not be able to escape the spectacular sounds and dazzling lights from exploding fireworks all around us. Fireworks were first made in China about 1000 years ago; people enjoyed frightening their enemies with their new, mysterious, deafening noises and flashing flares as they detonated the chemicals which go into fireworks: China still produces most of the world’s fireworks!
We now understand the science and technology behind the dynamic displays and exhilarating explosions; it is known as PYROTECHNICS.
Chemicals store lots of energy which can be released with great force if we set fire to the chemicals. The stored, or chemical energy, changes very quickly into movement, light and sound energy. The firework shoots up into the sky like a rocket or along the ground if pointing the wrong way!
Chemical Energy = Movement Energy + Sound Energy + Light Energy
The colours, which thrill us so much, are from different metals in the firework mixture. Each metal burns with its own particular coloured flame, some very bright. This adds the sparkle to the fireworks night.
As you enjoy the fireworks this year, remember it is best to go to an organised display where you can watch from a safe distance. Only have fireworks at home in the garden when supervised by an adult and keep yourself and your pets indoors!! I hope you have great fun!
Check out this video. Be patient as it takes one minute to load up!
Farida Mannan
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