Flame tests are useful to identify the presence of particular metal ions in solution.

The flame tests above show (a) strontium, (b) sodium, (c) lead, and (d) potassium. This is the basis of colors in fireworks. Consider using the link to the right and clicking on the Anatomy of a Firework and On Fire (Hot Science) Links.

  1. Check out this Periodic Table − you can see the bright line emission spectrum for each element.

I know that it is small, but here is a cartoon relevant to our recent study of light. Contributed by Julia D.