Point the slit of the spectroscope toward the light source. Get the spectrum
to line up with the scale in the scope.
Draw a picture of the spectrum that you see in the spectroscope. Draw the
picture carefully, showing the relative sizes of the colored bands and any
bright lines that you may see. Use the scale to help you determine the relative
sizes of bands.
Repeat steps 1-2 for all of your light sources. NEVER LOOK DIRECTLY AT THE
SUN WITH THE NAKED EYE, you may look next to the sun for your spectrum.
When you have finished with all of your unfiltered spectrums get a colored
filter and hold it up to one of the light sources and draw what the spectrum
looks like now.
Which spectra are the most similar? The most different?
What does the filter do to the light?
What is the difference in the spectrum between incandescent and fluorescent
Which spectrum had the most even distribution of colors?
Which spectrum had a bright purple line at about 4 ½ and a bright green
line at about 5 ½?
Which spectrum did you feel was overall the brightest?
What was the independent variable in this experiment?
What was the dependent variable in this experiment?
How could this information that certain lights produce certain spectrums
be used, what would be an application of this knowledge?