Replying to I need a physics lab

We just got our ISU, and I need to find a grade 12 university prep level lab involving field theory or the wave nature of light.  I was thinking about polarization and malus' law, but I cant find a lab to do that doesnt involve lasers (which I dont have).  I do have polarized lenses, and I was thinking about measuring light with a digital camera, using the histogram with constant iso, aperture, and shutter speed.

thanks amigos.