A student assembled spectrograph with a CCD detector to assist with students' understanding of spectrometry

To help students develop an understanding of the proper use and function of spectrographs and monochromators we describe a student-assembled spectrograph using a 'webcam' detector. The apparatus also works well as a low-cost demonstration, helping students make connections between an atomic spectrum observed by eye and a plot of the relative intensity versus wavelength. It also allows students to observe the internal components of a spectrograph