Crash Course
Water - Liquid Awesome: Crash Course Biology
Hank teaches us why water is one of the most fascinating and important substances in the universe.
Professor Dave Explains
Performing Thin Layer Chromatography (TLC)
We've learned a few separation techniques, so how about one more? Chromatography separates components of a mixture by virtue of their differing polarities, and thin layer chromatography, or TLC, is an invaluable technique that is used...