Here's a list of things to do with your spectrometer, whether you're a teacher, a hobbyist, or a grassroots scientist. Please add your own, and include how much time it'll take, an estimate of the cost, etc. 

##Activities##

###Measure sodium lines###

_15-20 minutes, 1 bunsen or propane burner_

Read more at: http://publiclaboratory.org/wiki/spectrometry-activity-sodium-lines

###Calibrate your spectrometer with a CFL bulb###

_5-10 minutes, a compact fluorescent lamp (CFL) and optionally a green laser pointer_

(Base this one on http://publiclaboratory.org/wiki/spectral-workbench-calibration but include more explanation etc)

Check your calibration with a green laser, which should show up as 532 nanometers.

Read more at: http://publiclaboratory.org/wiki/spectrometry-activity-calibration

###Measure an atmospheric absorption spectrum###

_5-15 minutes, the sky_

Find the [Frauenhofer lines](https://en.wikipedia.org/wiki/Fraunhofer_lines):

https://spectralworkbench.org/tag/sunlight
https://spectralworkbench.org/spectra/show/913 (especially good!)

Try different directions in the sky, towards and away from the sun. Where did you point your spectrometer to get the clearest absorption lines? Any idea why? [Post a research note](/note/add) with your data and describe what you did.

Read more at: http://publiclaboratory.org/wiki/spectrometry-activity-atmospheric-absorption

-- add more activities here --