Mokslas ir technologijos

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: MarkRoberLTplayer
TWITTER: #!/MarkRober
INSTAGRAM: markrober


  1. Mark Rober

    Mark Rober

    Prieš 24 dienas

    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

      Prieš 21 dieną

      ZRdOAugustas pop

    • CollegeRuled


      Prieš 21 dieną

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

    • Oliver Olsen

      Oliver Olsen

      Prieš 23 dienas


    • Lavin araz 123

      Lavin araz 123

      Prieš 23 dienas

      Mark Rober blxkcşcşlcşfkcöçÖsşsllddl

    • Dont Read My Logo

      Dont Read My Logo

      Prieš 23 dienas

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

  2. rapid Radiate

    rapid Radiate

    Prieš 8 val


  3. Mina W

    Mina W

    Prieš 9 val

    Could you please hire me as an intern, I’m in engineering plus I’ll pay you 🙏

  4. MaryAnn Smith

    MaryAnn Smith

    Prieš 10 val

    I would have called it unlucky

  5. Ahmed Sen Records

    Ahmed Sen Records

    Prieš 10 val

    What is the music like the beat it is so nicee

  6. yung clippa

    yung clippa

    Prieš 11 val

    mr beast who?

  7. KillerFeege


    Prieš 12 val

    rumor has it they still haven't found the camera submerged in the elephant toothpaste

  8. Cringe Worthy

    Cringe Worthy

    Prieš 12 val

    Are you still on that quest to become the favorite uncle?

  9. Pulo do Gato USA Envios

    Pulo do Gato USA Envios

    Prieš 12 val


  10. Theo Marques

    Theo Marques

    Prieš 13 val

    Very good production!!! One more subscriber from Brazil!

  11. Ana Angel

    Ana Angel

    Prieš 13 val

    That little girl in the background at 7:48 bye bye camera

  12. Rudi Harling

    Rudi Harling

    Prieš 14 val

    Now I know what my next pool party is going to be like!

  13. NotMicah Jones

    NotMicah Jones

    Prieš 14 val

    Mark:”Like that one time we put giant orbbies in the pool, and Kevin.” Me: *dying of laughter*

  14. Bavarian Night

    Bavarian Night

    Prieš 14 val


  15. Izzybusy Bellebutton

    Izzybusy Bellebutton

    Prieš 14 val

    Is science bob like the new bill nye or something

  16. awoomi


    Prieš 14 val

    i like how no one noticed that he photoshopped himself into his thumbnail and his shadow isn't facing the right way lol

  17. Stella K

    Stella K

    Prieš 15 val

    Man I only get normal pool parties these kids are lucky.

  18. My first Channel

    My first Channel

    Prieš 17 val

    am i the only one who wants to eat this stuff?

  19. TommyMLe


    Prieš 17 val

    Man, he must be a fun dad to have growing up.

  20. Natalie Thornton

    Natalie Thornton

    Prieš 18 val

    You should do oobleck

  21. Nokko Nokko

    Nokko Nokko

    Prieš 18 val

    The way you edit montages makes me want to die

  22. Frank Schaefer

    Frank Schaefer

    Prieš 18 val

    Plant trees with Mr Beast

  23. Meme


    Prieš 19 val

    7:27 you died

  24. SeanFilmProduction


    Prieš 19 val

    Thanks for the explanation omg

  25. Hihi 9380

    Hihi 9380

    Prieš 19 val

    6:42 Cuts tarps, then says, now before we cut the tarps

  26. Luke Gentile

    Luke Gentile

    Prieš 19 val


  27. Fida Rahila

    Fida Rahila

    Prieš 20 val

    It horrible😨😨😨

  28. Hi I need help

    Hi I need help

    Prieš 20 val

    2:29 iS ThaT ScIEncE bOb

  29. CrazyCrackers14 Undertale EXE

    CrazyCrackers14 Undertale EXE

    Prieš 21 val

    7:43 you can see the camera get knocked over. Really it is 7:44 but then you could be to late

  30. XxGaming BossxX

    XxGaming BossxX

    Prieš 21 val

    Asmr allert

  31. Dylan Colson

    Dylan Colson

    Prieš 22 val

    Mark you’re the best for wearing king of random shirt because Grant Thompson is now gone RIP

  32. Jackson kennedy

    Jackson kennedy

    Prieš dieną

    You need to build a roller coaster!!

  33. Can we get 50,000 subs with ? subs a video?

    Can we get 50,000 subs with ? subs a video?

    Prieš dieną

    7:40 is what u looked for

  34. Dylan Craig

    Dylan Craig

    Prieš dieną

    Did the subs today, loved the video

  35. Syon Cheung

    Syon Cheung

    Prieš dieną

    7:04 Rip that guy's d*ck..

  36. bocoy noiu

    bocoy noiu

    Prieš dieną

    when it was done it looked EXACTLY like a blue and red ice mixed

  37. Jaerus P

    Jaerus P

    Prieš dieną

    What if you created a slime pool?

  38. CrazyMadGamers


    Prieš dieną

    Swimming pool? That’s a skateboarding bowl!

    • bocoy noiu

      bocoy noiu

      Prieš dieną

      What if he made a hover board

  39. Gus Quinn

    Gus Quinn

    Prieš dieną

    can we have a moment of silence for the poor cameras that got toothpasteified and had like red and blue mush all over it

  40. Its Kaidin

    Its Kaidin

    Prieš dieną

    To be honest don’t even think mark can’t do something he can literally make anything happen he can even grow a alien egg

  41. Variety of Everything

    Variety of Everything

    Prieš dieną

    Please don't overdo this and become a LTplayerr (aka wastes large amounts of crap just for videos).

  42. Riley Comstock

    Riley Comstock

    Prieš dieną

    All good science stories start with “If I did math right”

  43. Paolo CORTI MENDEZ


    Prieš dieną

    Do a paper airplane videooo!!!

  44. Brandon Maves

    Brandon Maves

    Prieš dieną

    8:07, IT'S THE BLOB!

  45. Orange ender Dragon

    Orange ender Dragon

    Prieš dieną

    10:10 R.I.P 😭😭😭😭😭

  46. Christopher Baker

    Christopher Baker

    Prieš dieną

    Those kids are so lucky

  47. Kitty_kat Gacha

    Kitty_kat Gacha

    Prieš dieną

    Is he wearing the king of random merch I swear he is

  48. Shit Andy

    Shit Andy

    Prieš dieną

    So do you want to adopt a son ?

  49. playwars


    Prieš dieną

    A mapping sattellite passing over your city in that stretch of time would have been VERY interesting.

  50. ・yen! ・

    ・yen! ・

    Prieš dieną

    how did i get to roller skating, to roller blading, to scootering, to cool science

  51. beans beans

    beans beans

    Prieš dieną

    This is what should be used as the “lava” in the volcano in science fairs

  52. Joe Ramirez

    Joe Ramirez

    Prieš dieną

    My mom: Let's go to school Me: Na I'm going to watch mark rober

  53. Emerald Gemza

    Emerald Gemza

    Prieš dieną

    Can you be my uncle lol

  54. Ava Rainwater

    Ava Rainwater

    Prieš dieną

    What if he made a hover board

  55. Rachel Holtgrave

    Rachel Holtgrave

    Prieš dieną

    thank you for my since fair idea

  56. Samir Ahmad

    Samir Ahmad

    Prieš dieną

    Hey mark Can u plz make a video about space so what u can do is talk about space for a while and then make an experiment And I also wanted to reach out to you so can u plz respond

  57. farazzh


    Prieš dieną

    Where do you get the potassium iodide and the hydrogen peroxide

  58. Unstoppable Trickshots

    Unstoppable Trickshots

    Prieš dieną

    7:38 is what you came for

  59. Ivor Williams

    Ivor Williams

    Prieš dieną

    4:45 9:55 ...

  60. Chelsea Frick

    Chelsea Frick

    Prieš dieną

    The gummy legos hurt me