Without this fuel, the flame will go out. The colors of a flame are caused by bits of wax molecules that didn’t get completely reacted. These glow a certain color when they get to be a certain ...

dip wire loop in hydrochloric acid to clean check that the wire loop is clean by holding in flame - if no colour is seen, the loop is clean dip a clean wire loop into a solid sample of the ...

The students could investigate the flame colours produced by different elements. A piece of metal could be heated to show how the colour changes with increasing temperature. Relate this to the ...