Visible Spectrum of Chemical Solutions

In this lab we used a machine called the Spec-20. The spec-20 showed different colors on the chalk that we had to place in the slot with the different frequencies of wavelength. The colors ranged from a dark red to a dark violet or black. The red colors came from the highe wave frequencies and the purples came from the lower wave lengths. The lab was very interesting and we did three experiments testing yellow, blue, red, orange, purple, green, Cr, light Cr, and dark Cr.