Steve Spangler Science
Is Black Really Black? - Filter Paper
Separate water soluble ink into its color components and find that black is actually made of an array of colored pigments! This is a clever spin on the classic chromatography experiment. Use the book, Purple, Green, and Yellow, by Robert...
Curated OER
Gas Chromatography
A gas chromatography apparatus is demonstrated alongside its computer, and the narrator explains details of the procedure. Occasional graphics help young chemists view what is occurring within the chamber. Since gas chromatography is...