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medium in length. It is observed when glass is heated because the electrons within the nitrate are excited and thus put off a yellow color.

2. The energy of a photon with the wavelength of 670.8 nm is about 1010 cm in wavelength size and puts off a dark red color.

3. If a burner were not available you could use another source of heat that produces a flame, but is safe.

4. Metallic salts are used in fireworks because the metallic salts are what give the fireworks incandescence and luminescence, therefore creating light from the heat and other sources.

Conclusion:
From this experiment I have learned that salt solutions containing strontium and lithium, both producing red, have longer wavelengths meanwhile salt solutions containing barium, calcium, and copper have shorter wavelengths. Practical problems that could have occurred during my experiment that could have affected my outcomes were contamination of the wire, in the future I will double check that I have thoroughly cleaned the wire, so not to cross contaminate any of the salt solutions.

Extra Credit:

1. Neon lights form different colors because even though the light is called neon, it is not always neon being used. Different colors besides red are created from different chemicals such as Mercury, along with the phosphor-coated tubes.

2. Kirchhoff and Bunsen discovered cesium and rubidium. When a material is heated to incandescence it emits light that is characteristic of the atomic makeup of the material. In the original spectroscope design in the early 19th cent., light entered a slit and a collimating lens transformed the light into a thin beam of parallel rays

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