Crash Course Biology saison 01 episode 01 STREAMING VF

Genre : Documentary
Synopis : And thus begins the most revolutionary biology course in history. Come and learn about covalent, ionic, and hydrogen bonds. What about electron orbitals, the octet rule, and what does it all have to do with a mad man named Gilbert Lewis? It's all contained within. www.youtube.com/crashcourse

, Hank Green