• There is gunpowder inside the packets of fire works that causes the explosions when in contact with open flame.
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• fireworks are packed with careful combinations of chemicals such as ,potassium nitrate, (saltpeter),, sulphur,, and ,charcoal.
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• Different colours are made by mixing different chemicals such as, ,Calcium,Strontium, Barium,Boron, Alumiinum, Copper and Sodium.
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• These are the chemicals that you can predict to find in the 4th of July Magical flames .
