Lab Techniques & Safety: Crash Course Chemistry #21 | The Knowledge Dynasty

Lab Techniques & Safety: Crash Course Chemistry #21

Hank takes a break from the desk to bring you to the lab in order to demonstrate some important points about the practical side of chemistry – experimentatio…
Video Rating: 4 / 5

25 Responses to Lab Techniques & Safety: Crash Course Chemistry #21

  • Stephen Teng says:

    Are there chemistry lab courses which you have to do an experiment
    individually? They’re usually done in pairs.

  • Ashley Meijer says:

    I’d like to take a moment to appreciate the fact that he is wearing a
    potter puppet pals shirt.
    Noticed that while watching this at school. 

  • xtianmills says:

    crash course… Did you know the past 6 videos have been sponsored by NRA
    ad’s? I understand that you have no say in who comes on before the video
    you post… but what i want to know is, what are your thoughts on ainti-gov
    ( to quote the ad “Your government is lieing about gun registration laws”)
    ad’s being posted on a site where 10 year olds come to learn? (yes i know,,
    my son is a geek and i love him for it.)

  • Ali Grotkowski says:

    Reminds me of all the times my lab coat sprung holes during my first
    undergrad degree, and all the patches I subsequently sewed on to said lab
    coat.

  • Giuliano Taverna says:

    I picked up a heated glass tube and burned my thumb… it was 9pm.

  • Pearl Wong says:

    Don’t punch paper towel dispensers, kids. Just don’t do it.

  • Onesockanda Song says:

    8:09 THE CHEMISTS’ WATER BUCKET CHALLENGE

  • bloookulele says:

    This is a good recess from all the entropy and enthalpy i’ve watched from
    previous episodes hahahaha

  • ahmed yaqoob says:

    but can he do it on a cold rainy night in stoke

  • rlrsk8r1 says:

    Hmm, I wonder if there should be some machine or device for pressing glass
    tubes into stoppers? Like maybe a cone-shaped piece of metal or plastic
    that goes into the stopper to widen it, then the glass can be slipped into
    the center of the cone, and then the cone is removed, leaving the glass in
    place? It might reduce the use of the phrase “all the way through my hand”
    in the vocabulary of lab workers.

  • Eric Rivera says:

    Dilution is the solution to pollution! 

  • Wobogy says:

    I was also taught to always pour acid into the other liquid you’re adding
    it to. If it splashes, it just displaces the less harmful material.

  • nGon- says:

    8:10 Hank ‘Hipster’ Green, Ice Bucket Challenge before it went mainstream

  • lennyxxx16 says:

    So I was sitting in my (usually) boring lab safety class and the teacher
    says that she is going to show a video with a weird man explaining lab
    safety… my toughts: ‘Ughhh here we go’. Then I see the beginning of the
    video. Wait? wait? wait! That’s Hank Green!! :D. That made my day.

  • Valerie Sanchez says:

    my chem teacher sent me here!

  • MyGuitargirl101 says:

    8:10 the first Ice Bucket Challenge

  • TheFireflyGrave says:

    His T-shirt says, ‘Alas, a Cornucopia of Love.’

  • Vauche says:

    HE’S WEARING A POTTER PUPPET PALS T-SHIRT!!! 

  • Louis Mueller says:

    Love your Videos, I learn so much more than i did in simple chemistry
    class!

  • Bit Duck says:

    YO HARRIS’S CLASS!!!!, WE ALL BALLIN NIGGGASSSS CUZ FUCK THE PO PO
    NIGGAAAAAaaaaAAAAA. rHYME SO DOPE LIKE A G6, GOT MORE POPE THAN A JESUS,
    GOT LESS NOPE THAN A PRIUS, FUCK MORE HOES THAN YEEZUS,
    NIGGGGAAAAAAAA!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

  • Numitron says:

    I always wanted to see one of those showers in action.

  • rlrsk8r1 says:

    Also, I’m surprised Hank didn’t model some safety glasses for us. Go on
    man, pull a Norm Abrams for us.

  • Chloe Butler says:

    Thanks this is really helpfull for my GCSE’s

  • Ryan Drewrey says:

    I’ve watched a lot of Hank Green videos.
    A lot.

    And I’ve never seen him so happy or so excited as when talking about lab
    safety.

    Like so many videos. 

  • sabrina guibord says:

    So funny lol best monologue ever!
    #hankrocksthelab

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