SCIENCE CLASS #4- How to Waterproof Your Hand

Mark Rober

812 ਹਜ਼ਾਰ ਦ੍ਰਿਸ਼107

    Lots of juicy demos relating to surface tension! NO CLASS THIS WEDS!! I'm filming one of my normal monthly videos that day. Back on Friday though!!
    Go check out Dianna's awesome channel-
    CHALLENGE- float as many paper clips as you can and then come up with a creative way to ruin the surface tension and have them all sink. Tag me on any social media with your responses.
    Question for next time- How do astronauts weigh themselves when they are floating and weightless.

    ਨੂੰ ਪ੍ਰਕਾਸ਼ਿਤ ਕੀਤਾ ਗਿਆ 11 ਮਹੀਨੇ ਪਹਿਲਾਂ


    1. Mark Rober

      Thanks for attending! Remember, no class on Weds because I'm filming a normal vid but we'll be back on Friday with a super juicy one!

      1. Fatah Habibi Aziz

        Nñ uu

      2. Nora Faveur

        Please differentiate between the types of engineering. I don't know what to choose

      3. Nora Faveur

        Most positive PApromr

      4. Mr.Nooblox


      5. Jin eomma Fanfics

        Heyyy can't u come to my school 😭😭

    2. Hyein Clifton

      Trees use adhesion to suck up the water rom the rain like the paper towel.

    3. Laura Biggs

      I think 10

    4. Eli b

      The kids that get you as a teacher are going to be pretty lucky.

    5. Joshy Greene


    6. Master OON

      Isnt your hand already kinda waterproof

    7. Renee McGregor

      You're gonna be an Amazing Teacher, coz you already are!

    8. Virtual Blitz Gaming

      You would be an amazing teacher when you do decide to teach

    9. Xvert_Sloppy

      i did this experiment in 6th grade, I think i got like 102

    10. Leo Lyu

      man i miss these

    11. HappyPlays

      i just realized that mark wears the same hat in every video

    12. priyam agarwal

      Anyone notice at 3:49 that he used a hot wheels track to point at the mug lol

    13. Beepbruh 15


    14. Kevin O'Reilly

      Question: i broke several bones in my hand and had reconstructive surgery, there was massive swelling. When i started PT i noticed that the skin on my hand was ultra water proof like teflon. Its been this way for months now. Do you know why??

    15. Luka Kotur


    16. Jonny H

      You sure that a virus has DNA?

    17. DRS

      My uncle used to put soap in the water tank where the cows drank to keep the ducks out of the tank. It broke the surface tension. The ducks would sink so they stayed out. I guess it was better for the cows to drink a little soap than duck crap. We also put soap on the hill in our front lawn. We had a lot of clay in the soil. The water would run off. The soap broke the surface tension and allowed the water to soak in.

    18. Allen Bruntz


    19. BhavikXD


    20. Crisp

      Anyone heard of the flu

    21. From noob To pro

      Lol his pointer is a car track

    22. Nick Zamora

      He always says "oi!"

    23. Jalxys

      nobody: me: SOAP POWERED BOAT

    24. sue Hull

      I need talc hairspray for rainy days please.

    25. Sandhya Mangari


    26. jufmi9

      I just want to say that the way you teach is in my opinion the best way to go about it. For me at least, I learn and memories subjects the best when I get a mental model, only then do I feel like I fully understand it, which is exactly what you do. So if this is how you want to teach at schools, your students are going to love you. You'll be THE mister Rober from school, not just that famous guy from the internet (at least, that's how it worked at my school, the best teachers get school-wide recognition). Good luck!

    27. MrOrnald

      I like your videos but this time it is too chaotic. You clearly didn’t have idea how to explain all of this information and you tried to improvise it a bit. It failed but don’t stop. I believe you will make progress as a “teacher” and your future videos will be much smoother

    28. Robert Pazzini

      The paper clips didn't sink a bit bc of Archimedes and displacement.

    29. Mais Mehl

      What's with all the interlacing?

    30. unbekannt unbekant

      what is with arogel

    31. minecraft dj Alex

      oooo i miss a class wait teacher rober

    32. shel0650 shel0650

      Dude I love u but you could just your hand in Vaseline and wambam thank you Mamma you got a water proof hand

    33. Vlasta Khanova

      I think astronauts way themselves down near earth where gravity is normal and way themselves but not all the way

    34. Lynn Clift

      Me: gets a real boat and 10 buckets of soap 🚣‍♀️🚣‍♀️🚣‍♀️🚣‍♀️🚣‍♀️🚣‍♀️🚣‍♀️🚣‍♀️

    35. It’s a me Luigi


    36. Kayliegh's Korner

      I think that maybe you can put ummmm (thinks of first number in mind) 15 drops of water on a penny also I love your vids

    37. Heather McD

      What was the stuff the guy in the pool was covered in that stopped him from getting wet

    38. Buckie Smalls

      Soap breaks down fat.. Yet fat is used to make soap.. Talk about washing the hand that feeds you.

    39. oscar trevizo

      Can't I just watch Mark Rober instead of doing zoom

    40. Michael Wyzkiewicz

      Can't you just cut up a banana and rub it on your shoe and it will make it water proof

    41. Scarlette Ruelas

      I’m a kid so hopefully I get u as my teacher in high school

    42. Ming Yi Quek

      i'm pretty certain that tall trees draw water up by mainly transpiration pull, not adhesion/ capillary action

    43. A Sarandeses

      I need this because of my hyperhidrosis 😂

    44. Warp Cobra


    45. F S

      This is fun. It's like see my science teacher in junior high school but without the cool presentation.

    46. Lawrence Hart

      I hate school and I think this stuff is cool

    47. Grace & Shay

      Now this is a mug of water Also him he is using a hot wheels track to point to it I love your videos ❤️

    48. ARS VLOGS

      What no way Really coollllllllllllll

    49. Nikolaj Leithe

      Did enyone notice hes using a hot wheels track😂

    50. Kim Otna


    51. Matthew d

      38 drops

    52. Margaret Davies

      Hi Mark you should do this again!

    53. Jessica Greulich


    54. Gamini Jayasuriya

      Mark so does this mean that if I jump off a bridge into a river I’d have a better chance of surviving if I’m soaked in soap?

    55. KRM 5K


    56. Jack Grant

      I skipped actual science class for this

    57. Subscribe Lol

      1:40 Lol

    58. Namaste With Norah

      Who else scrolls through the comments when the video is playing?

    59. Anggie Ng

      yAY maRk rober is my TecHer

    60. Arts Crafts and DIYs

      if teachers showed this in class then school would actually be fun

    61. Kristen L

      Mark: This atom here... shows h2o Kids: THAT’S MICKEY MOUSE!!

    62. Riley Becerril

      I’m getting my tatoos redone and need this because I have them on my hand and work as a dishwasher and need to make sure they stay dry as possible


      My dear i love your videos . Please give just 5 subscribers. GOD BLESS U.

    64. Rodin Opuz

      Somehow i now no why theres no air in water now

    65. Livy Stevens

      im surprized u dont get hate! btw ily and im happy you dont get hate

    66. Sophia Hollander

      my guess before i started the video was ground up aerogel (sorry i cant spell) but after watching through the soap part and stuff my guess is some form of powdered soap like a detergent or something

    67. Andini Gratia Dimu

      You make me like Science 😂

    68. Pencil Roadman

      dam i raellly tried this im suprised thanks

    69. Will

      If mark becomes a high school teacher and I have high school kids when he’s a teacher I am moving to whatever town he’s working in

    70. Jacob Hart

      Anyone notice that he's using a hot wheels track for a pointer lol go mark


      mark: I want to work for NASA also mark: quits to do youtube still, mark: wants to be a high school physics teacher who else than mark: makes videos to train for it


      I guess 18

    73. AthenaTheGoddess

      Who else what him to be there science teacher at school!! I would listen and learn 10x more.

    74. Doodle Crafts And Cats

      Who else wants to be in his class someday. Also so we just put baby power on our hands and it's waterproof?

    75. SesameSeeds777

      The only science class I will ever attend (hopefully). Mark is actually interesting, explains things in an easy to understand format, and his voice isn't boring or flat. Other science classes explain things it a format I will never understand, their voice is so boring and flat I want to fall asleep, and don't use examples and diagrams. My real-life science class does use models and an easy to understand format, but their voices make me wanna fall asleep and the concepts they want to teach me are impossible to get a grip on without being explained properly. This is one of two science/engineering channels I will willingly watch, keep making great vids and thanks for teaching me! :D

    76. Glitching Gamer

      I would love for you to be my teacher

    77. Tanner Nelson

      fact: everyone would go to school if mark rober was their teacher

    78. Bad Gamer

      he will be a great teacher

    79. G A

      It’s nice rober can afford drugs ...

    80. G A

      Grow up Mark .. is this guy a rock spider ?

    81. Stream S


    82. Stream S

      and team trees!!!

    83. Stream S

      corno downis

    84. Jonathan Clark

      Fun video! You say at the end that water is magnetic. Is that really true? I know it's polarized due to its 4-point pyramid shape with 2 hydrogen atoms and two electron orbitals around the oxygen atom, so the side with the two hydrogen atoms is more electrically positive. I'm guessing that running water acts magnetically due to the moving charges but that still water is not magnetic. To test this, I think I can use a plastic sheet with a magnet behind it to watch the behavior of water droplets at various speeds, and I'm hypothesizing that still water won't be attracted to the magnet!

    85. Slavzy _

      Soap is like controlling parents.

    86. Potato Aim

      I have done 24 drops on a penny with a dropper is science before at school

    87. dimon37

      not DNA RNA

    88. Adam_M_ Tattooing

      You can use cinnamon too

    89. Zeus Lalani

      can you please make an electronic configuration vid

    90. Kota こた

      This is the science class I'd attend

    91. Alex Lopez Geltmeyer

      i got about 30 something but with dish shoap

    92. Dustin Demonetized

      Easy, just put oil

    93. WGF inc.

      Pro tip: wear a glove.

    94. The Purple Dragon

      Who else wants to become an astronaut now just so they can wring out a towel?

    95. Jadan Shaffer

      Mark, you should try making a giant raft that's completely powered by soap.

    96. MORGAN # travel man

      ho o r you

    97. 5K Subscribers Without Any Video

      *This dude is better at explaining than all my teachers, combined*

    98. Uzair Saeed

      Instructions unclear, my hands are on fire

    99. Anex Antony

      I think astronouts creates ag acceleration as then weight

    100. Calzone Shelly

      Mark: SOAP!!!! *yeets the paper*