Tungsten filament lamp Several gases Reflected Sunlight Fluorescent lamp Individual student science notebooks or paper. Using diffraction gratings, observe the unique spectra of different elements. Discuss the observed differences. Students record observations and results of the discussion. Spectra from the sun and stars have revealed no other elements except those known on earth.
Students examine several printed color spectra of elements.
Several Spectra of Elements Poster of Electromagnetic Spectrum Individual student science notebooks or paper. Spectra from the sun and stars have revealed no other elements except those known on earth. Students examine several printed color spectra of elements and discuss differences. Students record observations and results of the discussion. Students answer prescribed questions from the MTOF graph .