SCIENCE CLASS #1- WHY Does Helium Make Your Voice Higher?
Mark Rober
Live stream with demos your brain will enjoy where we answer a basic question every time.
Does farting make you weigh more or less?!?! Place your guess and give me feedback too-

  • Mark Rober
    Mark Rober


    • Unicorn Butt face
      Unicorn Butt face


    • Érika Matteau
      Érika Matteau


    • Érika Matteau
      Érika Matteau


    • Érika Matteau
      Érika Matteau


    • Érika Matteau
      Érika Matteau


  • Heather Trent
    Heather Trent

    Who is not in high school

  • pro539


  • Cél1

    I totally get it ! 😀 And I love it ! Happy brain 🧠

  • Lynn Stillwell
    Lynn Stillwell

    Thank you -- I love science but am weakest in physics. You make it painless to learn! I look forward to the other lessons ahead.

  • Liam Polo
    Liam Polo

    omg... u so smart i always watch u

  • Twigboy 259
    Twigboy 259

    I was scrolling through KGsofts and I saw this and I’m like ooh I could learn something whereas my classes for school hurt my head so this will give me a break from school but keep me learning also since my physics teacher didn’t really have the degree to teach science he was better at math than science. We had multiple substitutes that made more sense then the actual teacher so you teaching this is awesome. also on your way to get your teaching license happy for you. You should do great.

  • Jessica Hartman
    Jessica Hartman

    I've been telling everyone about you but am atheist so been good to be like science class for the kids but hmm she don't think the same is the feeling I get though I know it's helped people so what can I do to get people to listen other then be a good example by wearing gloves masks using everything I can to get by an make it better and safer if people don't wanna listen per say to science it drives me up a wall but I stay positive an tell the facts as I know them ha ty again for great class!!!

  • Krissy Fulton
    Krissy Fulton


  • Ethan Huskinson
    Ethan Huskinson

    I wish he was my science teacher.

  • Amigeo 635
    Amigeo 635

    Why did the heavier balloon fall faster?? Doesn't everything fall at the same speed because of inertia and gravity??

  • Terminator

    “Teaching high school physics is like my dream job” *used to work at nasa*

  • Charles Campbell
    Charles Campbell

    I think I heard him say that "oil is heavier than water, pour oil in water and it sinks to the bottom" If he said that I would no longer have an interest in his class!

  • Akhilesh Kumar
    Akhilesh Kumar

    Oil will floats on water

  • Jazmine Cuevas
    Jazmine Cuevas

    I don’t know why just because I’m watching this I feel smarter

  • Power Cord Gaming
    Power Cord Gaming

    15. Minutes uh more like 35 haha haha lol. I still liked it though don’t take it offensively you is my fav KGsoftsr

  • Taylor

    Mark: Wow, this is really heavy That weight: 25 lbs

  • Werek MarcixinGam
    Werek MarcixinGam

    Thanks for vid

  • Top-Nerdy Gamer
    Top-Nerdy Gamer

    that is why when you put a vid on slow-mo, the voices are low pitch because the fps is less frequent.

  • Zack Snider
    Zack Snider

    we are homeschooled so its not much of a difference

  • Elemental

    this boi is best boi

  • Radhika Bakshi
    Radhika Bakshi

    Mark- teaching is my dream job Me - mark is my dream teacher

  • Allison Phillip
    Allison Phillip

    What is a computer phone


    I unsubscribe mark rober. This isnt the content i subscribed for.

  • Jake L31
    Jake L31

    Kinda dropped out of online school so this is my new science class

  • dogsheen

    Mark Rober when he realized that there was 1 Million viewers

  • Linda Tom
    Linda Tom


  • Amondi Velasquez
    Amondi Velasquez

    Thank you for making these videos for students like me

  • Amondi Velasquez
    Amondi Velasquez

    Thank you for making these videos for students like me 👍

  • AlleyViper 08
    AlleyViper 08

    my mind just e x p a n d e d

  • Alex Golden
    Alex Golden

    Mark: having trouble lifting 25lb weight My mind: Mark, do you remember your mouse trap video? Use leverage to lift it! Also, the world's strongest man could lift that with his pinky toe

  • Disc FAN
    Disc FAN


  • Logan Jennings
    Logan Jennings

    Wow nice job man

  • no one
    no one

    do you guys think mark ill be an easy marker as a teacher?

  • ieatyomama

    ten minutes in still rambling. not sure what he is hopped up on. quality is really going downhill

  • smarten your mind
    smarten your mind

    He would be the best teacher.

  • SuperbowserLogan


  • Electrofizz __
    Electrofizz __

    Schools close: Mark Rober: Allow me to introduce myself.

  • Stefan Mashchits
    Stefan Mashchits

    C'mon public is not that bad.

  • Erbium99

    Sound doesn’t travel through air like waves travel through water. Sound waves are longitudinal waves while water waves are transverse. Im sure Mark knows that, it’s just diving deeper into something off topic and that takes up more time lol. But my nerdy self had to point that out.😅 Edit: yup he knows

  • soupy

    Last I checked 15+5=20 not 35

  • Sharon

    I love this

  • r@munya

    Air is a fluid! 🤯🙌

  • Abdul Malik
    Abdul Malik

    Thanks Mark 👊🏽

  • Christian Horner
    Christian Horner


  • Jayden Tan
    Jayden Tan

    This was the most interesting, entertaining Physics class I've ever been in

  • Henry Wu
    Henry Wu

    <a href="#" class="seekto" data-time="603">10:03</a> Oil is heavier than water??? I thought it's the opposite.

  • Hannah Bloom
    Hannah Bloom

    Mark please come teach at my school oh my god. We have like 3 physics teachers, all of whom I’ve heard a lot of complaints about. One does AP and honors and I failed out of her class because I never understood material when she taught it, the other two I don’t know personally, but many of my friends complain about the work and not understanding, and honestly I think most of us hate physics.

  • Sydney Elmer
    Sydney Elmer

    Awee you have nothing to worry about with public speaking. You did amazing. Bonus: you kept me more engaged than my professors

  • Benjamin Brassard
    Benjamin Brassard

    I’m watch videos on youtube 1,75 faster than normal and it’s fascinating how I can explain why the sound is more acute than at normal speed with what you explained.

  • Sana Batol
    Sana Batol

    When you’re a bio major in college and your awesome 12 year old nephew (who also loves science) shares this video. Subscribe button hit ✅

  • Isaiah Trujillo
    Isaiah Trujillo

    In case you didnt know, it was live

  • Darren Tan AKA SubSamurott Neko
    Darren Tan AKA SubSamurott Neko

    Wish he was my actual teacher

  • Shaun J
    Shaun J

    <a href="#" class="seekto" data-time="1048">17:28</a> “freedom units”? That’s a strange thing to call an Old English style of unit of length, as opposed to the kilometre that emerged from the French Revolution. :p

  • Epic Playlists
    Epic Playlists

    Imagine Mark being your physics teacher, i feel that he would make any science class super interesting.

  • Quinn Sams
    Quinn Sams

    Mark Rober Is A S.I.M.P.

  • Mr Ruffins
    Mr Ruffins

    the magic did not work

  • First Last
    First Last

    Hey mark where can I get that skeletor shirt.

  • HCarota

    you look nervous. That's cool, you get a like

  • shrimp

    <a href="#" class="seekto" data-time="138">2:18</a> he went from a nasa man to a youtuber to a teacher

  • mari uwu
    mari uwu

    I take more notes on this than in class

  • Mj Vogt
    Mj Vogt

    I am 11 and you are good at teching

  • Danny Lin
    Danny Lin

    First time ever doing a live show hey guys this is terrifying:)


    Mark Rober or Mars Rover?

  • Colton Gibson
    Colton Gibson

    now everything i hear i over analyze lmao. i just called my friend to tell him and i kept thinking about the ringer

  • Jayman Man
    Jayman Man

    Just to explain how well he explains those psychics things: I am 13 and havent done this subject yet ,and I UNDERSTOOD IT english is my second languages,and I UNDERSTOOD IT

  • Joshua Popov
    Joshua Popov

    The Big Bang never happened

  • nhi phan
    nhi phan

    I would go back to whatever school he will teach and do attendance 100%

  • Cassia Isabella
    Cassia Isabella


  • SammyBoi Is Best
    SammyBoi Is Best

    Ok, but why does helium make you faint, if you inhale so much?

  • _ PUNISHER _
    _ PUNISHER _

    <a href="#" class="seekto" data-time="4">0:04</a> pause at that moment and think about what u have done

  • Stacy Plotts
    Stacy Plotts

    I see a solid foundation of a future teacher in the making!

  • Tylersfar

    I’m always going to watch this

  • Savage League
    Savage League

    Now this is what I call education all the science channels I watch have taught me more that I've ever learned in school

  • L4W4ND

    At <a href="#" class="seekto" data-time="187">3:07</a> listen to his voice

  • Chloe Sanders
    Chloe Sanders

    I don’t know why but the way he dresses, like with the hat and suit jacket thingy, reminds me so much of Cisco from Flash

  • Rebecca Alexander
    Rebecca Alexander

    The 1k who disliked this vid hate on of these: School Physics KGsofts Life Science you see that I didn’t put Mark Rober. No one can hate him

  • Rebecca Alexander
    Rebecca Alexander

    I want you as my high school physics teacher

  • rcvidu-

    Best teacher we could have

  • Ash

    I use SF6 for W etching in a nano fabrication cleanroom facility. Don't remember the MSDS saying is could be inhaled :)