Compound Interest have many infographics and posters available, including several about fireworks and sparklers, from their chemical compositions to the colors they make and how they produce sounds, and more. You can find them all at this search string: http://www.compoundchem.com/?s=fireworks
[h/t Mindtribe for linking to the ‘chemistry of fireworks colours‘ originally, that lead me to the other posters!]
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