Skip Navigation

Rainbow of Colors -- The Flame Test Lab

Time Frame

1 class periods of 70 minutes each

Group Size



Utah LessonPlans


Students will conduct a lab and be able to explain the difference between a line spectrum and a continuous spectrum in terms of how they appear through a diffraction grating. They will also explain why different atoms emit different atomic line spectra and how this relates to the movement of electrons between energy levels in an atom.


  • student sheet (attached)
  • spectroscopes
  • well plates
  • pipettes
  • cotton swabs
  • Bunsen burners
  • beakers
  • water
  • chemicals
    • H2O
    • LiNO3
    • Cu(NO3)2
    • K NO3
    • Na NO3
    • Sr(NO3) 2
    • Ba(NO3) 2

Instructional Procedures

  1. Pass out student sheets attached.
  2. Explain the objectives and lead students through the pre-lab questions.
  3. Allow the pairs to work through the lab using the detailed instructions on their student sheet.


Lesson Design by Jordan School District Teachers and Staff.

Created: 12/10/2014
Updated: 02/05/2018