SCIENCE CLASS #4- How to Waterproof Your Hand

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.

Lae alla



  • 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!

    Mark RoberMark RoberAasta tagasi
    • Nice

      Aaron BargottaAaron Bargotta14 päeva tagasi
    • Ok

      gaming vids ✔gaming vids ✔29 päeva tagasi
    • Nñ uu

      fatah habibifatah habibi3 місяці tagasi
    • Please differentiate between the types of engineering. I don't know what to choose

      Nora FaveurNora Faveur4 місяці tagasi
    • Most positive EEtvsr

      Nora FaveurNora Faveur4 місяці tagasi
  • If Mark Rober was my physics teacher !!!!.

    Amjad MuhammadAmjad Muhammad3 päeva tagasi
  • 1. 23? 2. Water goes up and sidewayscuz there’s no gravity? 3. Also for the pepper experiment I used milk so you can se it better

    Shruti VavilalaShruti Vavilala9 päeva tagasi
  • Streamed

    Aaron BargottaAaron Bargotta14 päeva tagasi
  • I bet Bellarmine College Prep would hire you.

    Caesar Bro!Caesar Bro!15 päeva tagasi
  • Bye

    Lily JesseLily Jesse16 päeva tagasi
  • Ummm hi

    Lily JesseLily Jesse16 päeva tagasi
  • Mark, your videos are fantastic thank you. You did leave out an important factor with water going up the trees: transpiration. The evaporation of the water out the pores of the leaves creates a pull like sucking on a straw and pulling the water out of the tree. Cohesion and adhesion assist in this, but will not alone cause the water to climb high enough, it’s the pull from the top, the tension at the top working with the two forces That causes the upward movement of water. You probably already know this but I thought it was important point to share. Thanks again for your inspiring work.

    Diana HamptonDiana Hampton17 päeva tagasi
  • Wear a glove

    Augusto NAugusto N19 päeva tagasi
  • How water proof hand,use wax

    Wolf_ MasterWolf_ Master20 päeva tagasi
  • thank for doing me a knowledge

    DUCK MasterDUCK Master22 päeva tagasi
  • This is better than real college

    RodrixQRodrixQ23 päeva tagasi
  • Why are you saying rover? it's rober.

    It's Gacha MochaIt's Gacha Mocha24 päeva tagasi
  • He Is better than my School :D edit: I mean a lot lot lot better

    11_GM_A_33_Malaviya_Henil11_GM_A_33_Malaviya_Henil24 päeva tagasi
  • Love it

    Whatever YousuckWhatever Yousuck24 päeva tagasi
  • For what it's worth: I think you'd be a great high school science teacher but I think your skills, personality and passion would be of a greater value outside of the constraints of our standard education systems. Please continue to educate hundreds of thousands of children AND adults by making videos online or via a similar medium. Spend your time there instead of in a standard classroom.

    GhostSixActualGhostSixActual27 päeva tagasi
  • The rona: 0/10 Mark's teaching skills: 10/10

    StealthyBoiStealthyBoiМісяць tagasi
  • I don't get why people gave this a 'thumps down': if you don't want to know how to water proof your hand, JUST DON'T CLICK ON THE VIDEO

    Lena JasmineLena JasmineМісяць tagasi
  • 3:40 wow teachers should use these hotwheels tracks to teach

    152 Srikar Yendluri152 Srikar YendluriМісяць tagasi
  • I literally said 39 for the penny thing. We did this in school a year ago.

    Zach RiveraZach RiveraМісяць tagasi
  • May you please create more SCIENCE CLASS videos

    Mihai CiudinMihai CiudinМісяць tagasi
  • I learned a lot about soap today (:

    MrBrightKnightMrBrightKnightМісяць tagasi
  • 3

    Ttv MixTtv MixМісяць tagasi
  • I love this

    Zoe DiakidesZoe DiakidesМісяць tagasi
  • :)

    Angel JonguitudAngel Jonguitud2 місяці tagasi
  • What’s the song at the very beginning

    Hannah HillHannah Hill2 місяці tagasi
  • I just found a new way to waterproof your hand...............CUT IT OFF

    Adjusted XblAdjusted Xbl2 місяці tagasi
  • 5:08 counting with mark

    Ezekiel PinedaEzekiel Pineda2 місяці tagasi
  • I have a question. Does cohesion and adhesion occur in substances other than water?

    Amrit SinghAmrit Singh2 місяці tagasi
  • Absolutely love this, would totally have liked science if you were my teacher when I was in high school or even college! Would love to see better lighting though, it’s so dark compared to your regular videos. Congrats on all your success, your truly an inspiration to learn and grow, and of corse to catch sticky fingered morons who steal packages!

    Mack S.L.Mack S.L.2 місяці tagasi
  • they might use ropes to create the exact pull like the one that earths gravity puts to weigh themselves in space

    Manyu V ReddyManyu V Reddy2 місяці tagasi
  • your wayy better than my science teacher lol

    Jackson ShoemakerJackson Shoemaker2 місяці tagasi

    Daryl MaDaryl Ma2 місяці tagasi
  • Wait if you water proof your hands does it not let the germs get on our hands?

    KrishnanandaKKrishnanandaK2 місяці tagasi
  • Mark some years ago:I wanna quit working for NASA and be a youtuber Mark today:I wanna be a science teacher some day Me: It's evolving just backwards

    Smith BobSmith Bob2 місяці tagasi
  • I literally have never seen such an interesting live stream .The live classes were really informative . Thank you so much Mark !🐶

    It's Anya PandeyIt's Anya Pandey2 місяці tagasi
  • going to the comment section is the equivalent of talking to your friends when the teacher is explaining something

    Kaiser Wilhelm IIKaiser Wilhelm II2 місяці tagasi
  • Okkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkikkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk

    inkedinked2 місяці tagasi
  • I think they could weight them self by spinning to make artificial gravity then try to match earths gravity

    Fire AntFire Ant2 місяці tagasi
  • how to handproof my water?

    Not Epic StuffifyNot Epic Stuffify2 місяці tagasi
  • me trying to figure out how to be waterproof to swim faster: hmmmmmmmmm *covers self in baby powder and goes to swim practice*

    Vivian NiuVivian Niu3 місяці tagasi
  • The absorbed pond surgically rescue because banjo undesirably request qua a blue water. funny, inquisitive duckling

    Denyse CassyDenyse Cassy3 місяці tagasi
  • Sometimes when I am home alone I put oil on my body and slide around my house as if I am a snail 😅✋🏻

    Yuh YuhYuh Yuh3 місяці tagasi
  • Your the best. Nothing else to say

    Charlie PledgerCharlie Pledger3 місяці tagasi
  • Trees use adhesion to suck up the water rom the rain like the paper towel.

    Hyein CliftonHyein Clifton3 місяці tagasi
  • I think 10

    Laura BiggsLaura Biggs3 місяці tagasi
  • The kids that get you as a teacher are going to be pretty lucky.

    LpaulLpaul3 місяці tagasi
  • 52

    Joshy GreeneJoshy Greene3 місяці tagasi
  • Isnt your hand already kinda waterproof

    Master OONMaster OON3 місяці tagasi
  • You're gonna be an Amazing Teacher, coz you already are!

    Renee McGregorRenee McGregor3 місяці tagasi
  • You would be an amazing teacher when you do decide to teach

    Virtual Blitz GamingVirtual Blitz Gaming3 місяці tagasi
  • i did this experiment in 6th grade, I think i got like 102

    Xvert_SloppyXvert_Sloppy3 місяці tagasi
  • man i miss these

    Leo LyuLeo Lyu3 місяці tagasi
  • i just realized that mark wears the same hat in every video

    HappyPlaysHappyPlays4 місяці tagasi
  • Anyone notice at 3:49 that he used a hot wheels track to point at the mug lol

    yeeyeetpr1yamyeeyeetpr1yam4 місяці tagasi
  • 40?

    Trex texTrex tex4 місяці tagasi
  • 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??

    Kevin O'ReillyKevin O'Reilly4 місяці tagasi
  • 32

    Luka KoturLuka Kotur4 місяці tagasi
  • You sure that a virus has DNA?

    Jonny HJonny H4 місяці tagasi
  • 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.

    DRSDRS4 місяці tagasi
  • 8or24

    Allen BruntzAllen Bruntz4 місяці tagasi
  • Hi

    BH4VIKBH4VIK4 місяці tagasi
  • Anyone heard of the flu

    RispieeRispiee4 місяці tagasi
  • Lol his pointer is a car track

    From noob To proFrom noob To pro4 місяці tagasi
  • He always says "oi!"

    Nick ZamoraNick Zamora4 місяці tagasi
  • nobody: me: SOAP POWERED BOAT

    JalxysJalxys4 місяці tagasi
  • I need talc hairspray for rainy days please.

    sue Hullsue Hull4 місяці tagasi
  • No

    Sandhya MangariSandhya Mangari4 місяці tagasi
  • 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!

    jufmi9jufmi94 місяці tagasi
  • 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

    MrOrnaldMrOrnald4 місяці tagasi
  • The paper clips didn't sink a bit bc of Archimedes and displacement.

    Robert PazziniRobert Pazzini5 місяців tagasi
  • What's with all the interlacing?

    Mais MehlMais Mehl5 місяців tagasi
  • what is with arogel

    unbekannt unbekantunbekannt unbekant5 місяців tagasi
  • oooo i miss a class wait teacher rober

    minecraft dj Alexminecraft dj Alex5 місяців tagasi
  • Dude I love u but you could just your hand in Vaseline and wambam thank you Mamma you got a water proof hand

    shel0650 shel0650shel0650 shel06505 місяців tagasi
  • I think astronauts way themselves down near earth where gravity is normal and way themselves but not all the way

    Vlasta KhanovaVlasta Khanova5 місяців tagasi
  • Me: gets a real boat and 10 buckets of soap 🚣‍♀️🚣‍♀️🚣‍♀️🚣‍♀️🚣‍♀️🚣‍♀️🚣‍♀️🚣‍♀️

    Lynn CliftLynn Clift5 місяців tagasi
  • 5

    LoopzyLoopzy5 місяців tagasi
  • 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

    Kayliegh's KornerKayliegh's Korner5 місяців tagasi
  • What was the stuff the guy in the pool was covered in that stopped him from getting wet

    Heather McDHeather McD5 місяців tagasi
  • Soap breaks down fat.. Yet fat is used to make soap.. Talk about washing the hand that feeds you.

    Buckie SmallsBuckie Smalls5 місяців tagasi
  • Can't I just watch Mark Rober instead of doing zoom

    oscar trevizooscar trevizo5 місяців tagasi
  • Can't you just cut up a banana and rub it on your shoe and it will make it water proof

    Michael WyzkiewiczMichael Wyzkiewicz5 місяців tagasi
  • I’m a kid so hopefully I get u as my teacher in high school

    Scarlette RuelasScarlette Ruelas5 місяців tagasi
  • i'm pretty certain that tall trees draw water up by mainly transpiration pull, not adhesion/ capillary action

    Ming Yi QuekMing Yi Quek6 місяців tagasi
  • I need this because of my hyperhidrosis 😂

    A SarandesesA Sarandeses6 місяців tagasi
  • 30

    Warp CobraWarp Cobra6 місяців tagasi
  • This is fun. It's like see my science teacher in junior high school but without the cool presentation.

    F SF S6 місяців tagasi
  • I hate school and I think this stuff is cool

    Lawrence HartLawrence Hart6 місяців tagasi
  • Now this is a mug of water Also him he is using a hot wheels track to point to it I love your videos ❤️

    The Graceyn And Maddy Show!The Graceyn And Maddy Show!6 місяців tagasi
  • What no way Really coollllllllllllll

    ARS VLOGSARS VLOGS6 місяців tagasi
  • Did enyone notice hes using a hot wheels track😂

    Nikolaj LeitheNikolaj Leithe6 місяців tagasi
  • 35

    Kim OtnaKim Otna6 місяців tagasi
  • 38 drops

    Matthew dMatthew d6 місяців tagasi
  • Hi Mark you should do this again!

    Margaret DaviesMargaret Davies6 місяців tagasi
  • 3

    Jessica GreulichJessica Greulich6 місяців tagasi
  • 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?

    Gamini JayasuriyaGamini Jayasuriya6 місяців tagasi
  • uhhhhh........

    Ayham AyhamAyham Ayham6 місяців tagasi
  • I skipped actual science class for this

    Jack GrantJack Grant6 місяців tagasi
  • 1:40 Lol

    Subscribe LolSubscribe Lol6 місяців tagasi