SCIENCE CLASS #4- How to Waterproof Your Hand

Mark Rober
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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.

Ciência e tecnologia

Publicado em


30 Mar 2020



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Comentários 80
Mark Rober
Mark Rober 2 meses atrás
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!
Sey Yas
Sey Yas 3 dias atrás
@lana lake hey you watch anime? 🤔
lana lake
lana lake 3 dias atrás
@Sey Yas 👍😊 Thanks, you too!
Sey Yas
Sey Yas 3 dias atrás
@lana lake 😄 thanks. I would always there to help you. Stay well
lana lake
lana lake 3 dias atrás
@Sey Yas Lol, sounds good Sey...I'll bookmark this video and if I have anything I think you might like to help me find the answer to, I'll know where to come! 😊 Stay well! ☮🍀☮ Thanks again!
Sey Yas
Sey Yas 3 dias atrás
@lana lake it was nice to talk to you too. I have nothing more left you say after reading your sweet words. I have asked you enough questions so in return you may have my help or better ask me a question. l Iike finding answers. Have a nice day.
Kassu 15 horas atrás
Thank you!
Tevita Manning
Tevita Manning 22 horas atrás
i learn more from marks youtube channel than actual school. and i wish i had mark as a teacher it would be so awesome
Dario Springhetti
It took me 2 hours but I got 462 pins to float
Joseph Dice
Joseph Dice 2 dias atrás
Mark explained it way better than my science teacher
Aagney N
Aagney N 3 dias atrás
Gang Qu
Gang Qu 3 dias atrás
5 drops on the penny
Diego Alvarado
Diego Alvarado 3 dias atrás
I love how you used a hot wheels track as a pointer.
Martin Alford
Martin Alford 4 dias atrás
Braeden Heipel
Braeden Heipel 4 dias atrás
hi i'm 11 years old and mark has inspired me to attempt to make a bunch of science things and try to make a bunch of personality tests and honesty tests like the video he made 2 years ago the 200 dropped wallets test i tried attempting a bunch of those test and has seen all of his videos he is my favourite youtuber he's just soo fun to watch and i and trying to get all the tools too make his work bench so i am just saying you should watch all his videos and subscribe to his channel thx and leave a like on this comment cuz this is coming from an 11 year old boy. Bye!
matt schwarm
matt schwarm 4 dias atrás
Jarek Witczek
Jarek Witczek 5 dias atrás
So when you brought up the tree example with adhesion, for some reason the first thing that came to my head was photosynthesis. Like the tree takes in the sun and in a sense ‘absorbs’ it and it makes it grow. 😅
lana lake
lana lake 6 dias atrás
I was a terrible student but the one class I never missed was,"Science" because my teacher was as passionate as Mark Rober and those are the teachers you never forget!
Ishan Sharma
Ishan Sharma 7 dias atrás
please make more science class videos
Doge dog
Doge dog 8 dias atrás
418 dislikes were the molecules who lost the tug-o-war... Jk
lana lake
lana lake 7 dias atrás
Doge dog Beautiful dog! Oops, forgot...yes, I agree, good analogy, lol!
Madden Nocash
Madden Nocash 8 dias atrás
Bruh I wish you were my teacher
Jordan Henry
Jordan Henry 9 dias atrás
I saw the commercial that you were in your crazy you were holding a flame thrower🤦🏻‍♂️
Lil Tweet
Lil Tweet 10 dias atrás
You’d be the best teacher!
Yuvin SIRIWARDANA 10 dias atrás
Elliot Ma
Elliot Ma 11 dias atrás
60 drops of water
Marcell Pullin
Marcell Pullin 11 dias atrás
Is that a hot wheels track pice at 3:35
dt. daniellexx
dt. daniellexx 12 dias atrás
Now this is the science that tickles my senses
MentoForKids 12 dias atrás
I remember watching a “Mr. Wizard’s World” on Nickelodeon in the 90’s where he dusted the top of an aquarium filled with water and dropped a bolt in it. He reached for the bolt, and his hand was dry. Mind blown. Thank you for doing this because for the past 30 years, I’ve been wondering how he did that.
DragonJackGamer DJG
DragonJackGamer DJG 13 dias atrás
Question: would the soapy foam boat work in salt or fresh water better? Please like so he can see
M J 13 dias atrás
I don’t know if you have ever heard of a summer camp called “mad science” but we did all kinds of stuff like this, soap and water, dry ice stuff, robotics, general learning about science, that the only reason I knew what plasma was, cause we had one of those plasma ball things so we could learn an electricity.
Bujju Babbu
Bujju Babbu 13 dias atrás
I mean if you multiply the mass inertia with the average adults weight you can figure out the approximate result
Elle Stern
Elle Stern 14 dias atrás
Elle Stern
Elle Stern 14 dias atrás
Elle Stern
Elle Stern 14 dias atrás
The water floats
Elle Stern
Elle Stern 14 dias atrás
R3b3l Ray
R3b3l Ray 15 dias atrás
Aleksandar Gapkovski
Aleksandar Gapkovski 17 dias atrás
Definitely my favourite class
tand more
tand more 17 dias atrás
omg it's me
omg it's me 18 dias atrás
He is really really good. I mean he is so smart and I love watching his videos.
a A
a A 19 dias atrás
I bet my science teacher can't answer to a single of those questions like the way Mark Rober did. Like=you agree have a similar teacher like mine
proNOTbuyer TO
proNOTbuyer TO 19 dias atrás
14:50 Bob Ross right there
Kichu Playz edu
Kichu Playz edu 20 dias atrás
People who dislike mark rober is chinas space agency's alt accounts because he used to work at nasa
Extended YT
Extended YT 20 dias atrás
I wish if you were my teacher my teacher sucks at teaching science :(
Rajesh Elumalai
Rajesh Elumalai 21 dia atrás
more than 50 more than 60 61 62 63 64 65 drops
Rishabh Chandra
Rishabh Chandra 24 dias atrás
14:30 - is this art or physics
Geoffrey Willmoth
Geoffrey Willmoth 24 dias atrás
35to 40 is my guess mark
Bas Rene
Bas Rene 25 dias atrás
Best science teacher ever
tsunami beast
tsunami beast 25 dias atrás
Your hand is already waterproof
Zachariah M. Baird
Zachariah M. Baird 26 dias atrás
Actually, Veritasium made a video about how trees work, and they don't use capillary action, they use negative pressure.
The Fat Man
The Fat Man 29 dias atrás
don't use the same stuff used to waterproof your shoes as it will burn your skin with the chemicals used in the solution!
9P Pya
9P Pya Mês atrás
Coconut oil
kirispine kousihaa
kirispine kousihaa Mês atrás
Your a much better physics teacher than ours
Brennen Wright
Brennen Wright Mês atrás
So... should we drink soap to lose fat?😂😂
Just_life J
Just_life J Mês atrás
Imagine disliking videos
gummy bear
gummy bear Mês atrás
I love how u used a race car track for a pointer stick :D
krsdog Mês atrás
I am going to make an Edpuzzle with this! My 8th graders will love it AND it hits the learning goals.
Porter T
Porter T Mês atrás
I really enjoy your videos, and I noticed some of your captions have minor errors and wanted to help adjust them so that people with hearing impairment can enjoy your videos and understand them accurately. For instance, at 7:39 the caption reads ”it’s coming up to divine” but it should be “It’s becoming a tube of water”. I have created a list of other corrections if you are interested. Thanks, Porter (8th grade)
Yannick Chasles
Yannick Chasles Mês atrás
For Diana question you can push with a fix force and look at the acceleration or with a fix acceleration and look for the force needed.
Yannick Chasles
Yannick Chasles Mês atrás
Tree use negative pressure from watter evaporation to get the watter up.
2Thicc4You Mês atrás
I wish schools had a system where they had their normal curriculum but on a certain day like every Friday, all the teachers find a topic to teach using real world problems/phenomena, like how mark does his science classes, so for example, geography class or history class would talk about an embarrassing or funny/interesting moment is U.S or world history, or a crazy place that defies all logic, and is mysterious like the place called the devils hole or something like that that has a hole in the water like a waterfall in the middle of a lake for unknown reasons. It would help keep students interested and enjoy school more. I know I would.
Fer Reaf
Fer Reaf Mês atrás
13:37 Man breaks city’s dam and ruins entire water supply
Giuliana Butera
Giuliana Butera Mês atrás
Whenever I see you on a different channel I go like: OMG ITS HIM GUYS REEEEEEEEEEEEEEEEEEE
Ari's little world
Ari's little world Mês atrás
you should still do this when covid is over
Duck Butt
Duck Butt Mês atrás
How to waterproof your hands: Step 1: Wear a glove.
Pranay mohla
Pranay mohla Mês atrás
Lol instead of a scale he used an hot wheel track 3:40
Joemoe95 River hunter
I want to have you for a high school teacher
bauerpower13 Mês atrás
My dream come truuuuuuuuuuuuuuuuuuuuuuuuu
Samuel Ledesma
Samuel Ledesma Mês atrás
18 drops of water on the penny
Kalai Kumar
Kalai Kumar Mês atrás
How can I use it to stop my sweaty palm?
Barry Lustgarten
Barry Lustgarten Mês atrás
good job
CFTV Data Mês atrás
I wish you had been my high school science teacher, Mark... I would have paid much closer attention in class!
Hyped Robloxian
Hyped Robloxian Mês atrás
My kids, they RUN to the TV to turn on the show. They love what you're doing and they're learning a lot. I hope you're able to keep doing it for a while!
MeguminUwU Mês atrás
i b e a g y m n a s t animatesss
Vadim Mês atrás
So our isnt waterproof
Pooplifes Mês atrás
i have this for science class lol
Hang Zhang
Hang Zhang Mês atrás
Samit Mês atrás
Maby a 50
Samit Mês atrás
Then why there is more pressure at bottom
John Borja
John Borja Mês atrás
21:25 batman
eduardo aracena
eduardo aracena Mês atrás
multiplying the effects of gravity time how much they weighed in space
That Blue samurai
That Blue samurai Mês atrás
lol he is using a hot whee;s track
Wesley Taylor
Wesley Taylor Mês atrás
Taken Gaming
Taken Gaming Mês atrás
When you can't find a pointer.... *Well a Hot Wheels track works just as well.* 😂
XavierProdz Mês atrás
so if i eat soap i’ll be fat free lol
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