World's Largest Elephant Toothpaste Experiment

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  • Published on:  Thursday, August 29, 2019
  • 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:




  • Source:


  • Mark Rober

    Mark Rober

     a months ago +39331

    I'm finishing out 2019 real strong with some BIG videos so be sure to subscribe, bell, donate a kidney, etc.

  • Hyeongyun Kim

    Hyeongyun Kim

     an hour ago

    the king of random

  • God of All Daniel’s

    God of All Daniel’s

     2 hours ago

    Man if Mark Rober was my uncle

  • Kari Fournier

    Kari Fournier

     3 hours ago

    Please invite me to help I wanna be your son! Jk 🙃😅😉. by the way says Kari Fournier because that’s my moms name

  • Jfreed67 freed

    Jfreed67 freed

     5 hours ago

    Can you touch it

  • Monkey David 01

    Monkey David 01

     6 hours ago +1

    Time for a new vid mark

  • candy kraken

    candy kraken

     7 hours ago

    If this gets to 1k my mom will get me a phone please,🤞🤞🤞🤞🤞🤞🤞🤞🤞🤞🤞🤞🤞🤞🤞🤞🤞🤞🤞🤞🤞🤞🤞

  • candy kraken

    candy kraken

     7 hours ago

    Me sees title not real sees creator of this is real

  • anne-liisi mändmets

    anne-liisi mändmets

     9 hours ago

    how did you clean it

  • Jiah Hong

    Jiah Hong

     12 hours ago

    Its like a swimming pool

  • Vansh Shukla

    Vansh Shukla

     13 hours ago

    Its dinasour toothpaste.

  • Ryan Reynolds

    Ryan Reynolds

     13 hours ago +1

    7:02 Bob r u ok?

  • Kaden Di Virgilis

    Kaden Di Virgilis

     15 hours ago

    Nice king of random shirt. R.I.P grant

  • froi seab

    froi seab

     15 hours ago

    "Come on out, they said. It'll be FUN, they said."

  • Sean Wingad

    Sean Wingad

     18 hours ago

    When is the next video out? We've been waiting fon months

  • Craig Preston

    Craig Preston

     19 hours ago

    Almost everyone at my school knows you and it's great! :D

  • Dr. LiGmA

    Dr. LiGmA

     22 hours ago

    Mark: "I think I'm about to get demonitized"

    Susan: I'm about to end this man's whole career

  • Gio Tafur

    Gio Tafur


    Where can I buy this stuff

  • crisp wafers

    crisp wafers


    You should do a video on this why don’t car manufacturers put like a filter in the exhaust to make the gas fumes not pollute as much because I know factory exhaust things have filter to not pollute as much.

  • Sayain Retro gaming

    Sayain Retro gaming


    Dragon fly: dont mind me im just passing in and ruining your shot