Vitenskap og teknologi

World's Largest Elephant Toothpaste Experiment

I'm not a chemist.
A portion of this video was sponsored by LastPass.Click here to start using LastPass:
Science Bob's Elephant toothpaste recipe-
Here is Science Bob’s behind the scenes commentary:

0:00 - Marimba Idea - Blue Wednesday
0:15 - Arrow (Instrumental) - Andrew Applepie
1:08 - Dansez - Fasion
1:35 - Pata Pata - Miriam Makeba (Matt Cherne Remix)
2:25 - Dive - Lvly
3:49-6:40 - Dansez - Fasion
6:44 - Kalimba Jam - Blue Wednesday
8:16 - Salamanca - Sarah, the Illstrumentalist
9:47 - Kalimba Jam - Blue Wednesday
10:12 - Q - Blue Wednesday
11:06 - Too Happy to be cool by Notebreak

Summary: Elephant toothpaste (aka slime foam) has sort been done so many times I wanted to do it really big. We did a ton of testing.

They are soft-

I make videos like this once a month all year long while supplies last:
FACEBOOK: MarkRoberNOplayer
TWITTER: #!/MarkRober
INSTAGRAM: markrober


  1. Mark Rober

    Mark Rober

    21 dag siden

    I never claimed to be a chemist. I'm finishing out 2019 real strong with some BIG videos so be sure to subscribe, bell, donate a kidney, etc.

    • Bianca Calderon

      Bianca Calderon

      18 dager siden

      ZRdOAugustas pop

    • CollegeRuled


      18 dager siden

      I shed a tear when I noticed that you were wearing a TKOR shirt.

    • Oliver Olsen

      Oliver Olsen

      19 dager siden


    • Lavin araz 123

      Lavin araz 123

      20 dager siden

      Mark Rober blxkcşcşlcşfkcöçÖsşsllddl

    • Dont Read My Logo

      Dont Read My Logo

      20 dager siden

      Mark Rober *Đ0 NØT RĘÆD MŸ ÑÃMĖ ORRR...*

  2. Stephanie Cruz

    Stephanie Cruz

    8 timer siden


  3. Stephanie Cruz

    Stephanie Cruz

    8 timer siden


  4. jeo vasquez

    jeo vasquez

    8 timer siden


  5. Ethan's Way Of Gaming

    Ethan's Way Of Gaming

    8 timer siden

    Science Is Satisfying

  6. pro gamer

    pro gamer

    9 timer siden

    Wait but isn’t 11 times 0 well 0

  7. Colvakan


    9 timer siden

    0:42 Dragonfly: "Hey" A milisecond later "Bye"

  8. Niall Sheedy

    Niall Sheedy

    10 timer siden

    me: Lets Make Elephant Toothpaste! Mark Rober: pool pool pool pool pool pool pool pool pool pool pool pool pool pool pool pool pool

  9. Lauren Fisher

    Lauren Fisher

    10 timer siden

    Yay science bob



    10 timer siden

    oh I want those legos, buildable yet not painful

  11. Elwood P. Dowd

    Elwood P. Dowd

    11 timer siden

    What is the fastest man made rpm possible? Any product or item.

  12. Kyraan sookhoo

    Kyraan sookhoo

    11 timer siden

    I see that you're wearing the King of Random merch

  13. tea time

    tea time

    11 timer siden

    mr beast's next video : * last to leave pool of elephant tooth paste wins 20k *

  14. Patrick Madrigal

    Patrick Madrigal

    11 timer siden

    The slow motion of the toothpaste coming out of the guns is awesome!

  15. itzCookieplayz Lol

    itzCookieplayz Lol

    11 timer siden

    5:25 and Kevin...

  16. GGPolice Boy

    GGPolice Boy

    12 timer siden

    A few years ago.. I.. wanted u to make a collab with grant...and I guess it's impossible now..

  17. Oli ONeill

    Oli ONeill

    15 timer siden

    gets a yeast infection

  18. Arvid Gunnarsson

    Arvid Gunnarsson

    15 timer siden

    9:13 Kid with sick moves

  19. 3 bros

    3 bros

    16 timer siden

    Imagine having a Uncle like Mark.Nice video.You always inspire me.

  20. Water PheonixEpic

    Water PheonixEpic

    16 timer siden

    Nice tkor shirt

  21. Ariel Mougraby

    Ariel Mougraby

    16 timer siden

    Hi Mark! Nice video! But which song did you use at 2:31 ?

  22. cookie FNM

    cookie FNM

    17 timer siden

    Video producer: how much toothpaste do you want? Mark Rober :Yes

  23. Primitive Land

    Primitive Land

    18 timer siden

    Wow so cool how talented you are ! I am your new friend here. I keep up your video all times I stay around you thank for your kindness back

  24. Hashim Saleem

    Hashim Saleem

    18 timer siden

    Scientists Bob

  25. ابن البصره حمودي

    ابن البصره حمودي

    19 timer siden

  26. FallenAngel_Yt Gacha Tuber Girl

    FallenAngel_Yt Gacha Tuber Girl

    19 timer siden

    Why is it called elephant toothpaste tho

  27. Chris Sosa

    Chris Sosa

    19 timer siden

    You guys should make a video with Mr.Beast

  28. Ed Turner

    Ed Turner

    20 timer siden

    u are amazing mark :D

  29. Dominoandmic Salazar

    Dominoandmic Salazar

    20 timer siden

    Are you wearing the king of random merch?

  30. Lisa Morris

    Lisa Morris

    22 timer siden


  31. Shiena Ranes

    Shiena Ranes

    23 timer siden

    Woe my favorit subjeck science and l will subcribe thiz

  32. Dragon Sa

    Dragon Sa

    23 timer siden

    Why do u have tkor murtch

  33. steed 3354

    steed 3354

    Dag siden


  34. Fresh Avacado

    Fresh Avacado

    Dag siden

    0:43 = z o o m

  35. Manny Zantua

    Manny Zantua

    Dag siden


  36. June Thao

    June Thao

    Dag siden


  37. Jayden Christopher

    Jayden Christopher

    Dag siden

    I love you mark hit the like if you feel the same 👇🏻

  38. Lix on Mobile

    Lix on Mobile

    Dag siden

    The part u were waiting for is at 7:15 thank me later

  39. Gabriel Kujawowicz

    Gabriel Kujawowicz

    Dag siden

    I miss grant don't get me wrong the two new guys are great but grant just kinda had a,great aproche to it all

  40. A Daniels

    A Daniels

    Dag siden

    I dont get how this id elephant tooth paste

  41. ThePumpkinKing


    Dag siden

    I saw this on Smosh Labs!

  42. Rainbow Shep

    Rainbow Shep

    Dag siden

    2:37 Harry Potter vs Voldemort recreation colorized

  43. Draco Weasley

    Draco Weasley

    Dag siden

    Lol I watched this in class and I was soooo happy to see you!!

  44. cragnog


    Dag siden

    man i just love you

  45. ThatOneYoutuber


    Dag siden

    Yo Mark, You are awesome dude! When i grow up i want to be able to know how to do all of the cool stuff you do. What was your degree in (i dont know the way to ask correctly) but what was your degree in (sorry if i am making no since but please respond i wanna be able to get an early start to learning all of this stuff

  46. Need you now

    Need you now

    Dag siden

    Well done babish?

  47. Santi Garcia

    Santi Garcia

    Dag siden

    ya'll should've jumped in to the pool

  48. DJ Stim

    DJ Stim

    Dag siden

    Yo did you get demonized

    • Need you now

      Need you now

      Dag siden

      Nice collection!?

  49. Nicole Gonzales

    Nicole Gonzales

    Dag siden

    So cool👌👌👌👌👌👌👌👌👌👌💨💥

  50. Derpichu That one guy

    Derpichu That one guy

    Dag siden

    I wish my IQ was as huge as this guys.

  51. Andy Sun

    Andy Sun

    Dag siden

    You are the best dad ever. I wish you were my uncle

  52. xxtØcÎc ÎØ Juîlan

    xxtØcÎc ÎØ Juîlan

    Dag siden

    When he said and they gave me cookies and then when they said roachs I said o no

  53. Charlee Gibson

    Charlee Gibson

    Dag siden

    Their you go kids thats how volcanoes work

  54. Genghis Chron

    Genghis Chron

    Dag siden

    Me when a girl touches my shoulder

  55. NinjaCreeper plays

    NinjaCreeper plays

    Dag siden

    Really cool I like science

  56. AJ Jardiah Jr

    AJ Jardiah Jr

    Dag siden


  57. AJ Jardiah Jr

    AJ Jardiah Jr

    Dag siden

    I did it :)

  58. Haiden Fedele

    Haiden Fedele

    Dag siden

    What percent of hydrogen peroxide did you use

  59. Kso Herman

    Kso Herman

    Dag siden

    7:14 elephant toothpaste: *did you just assume my gender*

  60. Loren Pacman

    Loren Pacman

    Dag siden

    Why mister beast didn't came?