Extraction with Mark Niemczyk, Ph.D. 

Very good teacher. Hard not to learn when you have someone passionate about what they do.

Some chem teachers get angry seeing students put glass in metal rings, saying "glass should never touch metal!" and advice to use plastic filtering rings instead. I am glad to see no one is too crazy about using metal rings as glass holders in practice.

Thank you. I can do my lab report well after this

Now I know what are the bent Chattaway-type spatulas for. Thanks!

Please do a catharanthus roses extraction.....

"If you'll look closely..." *camera moves farther away* Dude get another cameraman...