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 . The first tic mark above the origin is actually 30. Because each isotope is represented by a distribution curve which overlaps others at the base, it is not feasible using high school math to decide exactly how much of a given isotope is actually present. We can, however, use these graphs to indicate approximate quantities, teach the reading of peak heights on the logarithmic scale, and show a graphical interpretation of the actual raw data being collected from a satellite.