CrashCourse is a great youtube channel for History, Biology, Chemistry, etc! It’s headed by brothers Hank and John Green. John is a well-known author who is most famous for his best-selling books The Fault in Our Stars, Looking for Alaska, Paper Towns and many more!
Six awesome courses in one awesome channel: John Green teaches you US History and Hank Green teaches you Chemistry. Check out the playlists for past courses in World History, Biology, Literature, and Ecology.
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