18+ What Do We Know About Fireworks (Worksheet 2) Pics. Many chemists who design fireworks also work on military applications such as producing brightly colored smoke for signaling purposes. Pyrotechnic chemists are working to make fireworks safer for both people and the environment.

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4) what do people do for __(entertain)__ in this town? Sometime between 600 and 900 a.d., chinese alchemists searching for a potion for immortality accidentally made the first fireworks by mixing saltpeter (aka potassium nitrate), charcoal, sulfur, and other ingredients, putting the mixture in empty bamboo shoots. I don't know much about them to tell you the truth.

What do you know about noise pollution?

… (he / go) to work by bus everyday. Pyrotechnic chemists are working to make fireworks safer for both. Legend tells of a chinese cook who accidentally spilled saltpeter into a cooking fire, producing an interesting flame. What causes different colors in fireworks?