Read more belowThe flame cools and changes colour as it moves away from the source of the flame, because it is exposed to more oxygen. The temperature change causes the colour of the flame to change ...

The school chemistry lesson of “flame colours” provides the clue to how fireworks can provide a range of hues. Metal salts are combined with a fuel and an oxidiser into small balls about the ...

Some metal cations have distinctive colours when held in a blue Bunsen burner flame. A nichrome wire is used to hold the test solid – nichrome has no flame colour of its own and it has a high ...