World's Largest Elephant Toothpaste Experiment


Comments • 22 025

  • Mark Rober
    Mark Rober   2 months back

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

  • Craig Preston
    Craig Preston  47 minutes back

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

    • Dr. LiGmA
      Dr. LiGmA  4 hours back

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

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

      • Gio Tafur
        Gio Tafur  5 hours back

        Where can I buy this stuff

        • crisp wafers
          crisp wafers  6 hours back

          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  6 hours back

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

            • Vampiredude Yt
              Vampiredude Yt  6 hours back

              Ahhh that's hot.

              -will Smith

              • Jasmine Lamorie
                Jasmine Lamorie  6 hours back

                0:43 I think that’s a hummingbird? A dragonfly? Idk

                • Impact Games
                  Impact Games  7 hours back

                  Uhh goodbye camera

                  • David Jia
                    David Jia  7 hours back

                    Who else is waiting for His videos? Because I am 😆

                    • Meowaaa Has The Meow
                      Meowaaa Has The Meow  8 hours back

                      The only down side is... Your going to have to clean it

                      • Chantaya Toyne
                        Chantaya Toyne  8 hours back

                        Absolutely love your channel, your experiment videos are the only videos my 6 year old ADHD son likes to watch all the way through for science! (Homeschooling)

                        • Psychotic Wolf
                          Psychotic Wolf  10 hours back

                          You: Let’s break a Guinness World Record!

                          My school: Ok guys, 109172645442789019182863 question test, all about what’s the difference between *Reflection* and *Refraction*

                          • rDragon
                            rDragon  11 hours back

                            wait what happened to the kid who got hit by the stuff?

                            • Dragsteusz
                              Dragsteusz  11 hours back

                              8:37 legit slaughter right there damn

                              • I’m Gay
                                I’m Gay  12 hours back

                                Are you wearing a king of random shirt?

                                • Sa Hoang
                                  Sa Hoang  12 hours back

                                  I really feel bad for your neighbors

                                  • Liamxy
                                    Liamxy  12 hours back

                                    Science wants to know your location.

                                    LoL but I love this keep it up.

                                    • PHEONIX _GAMING
                                      PHEONIX _GAMING  13 hours back

                                      This part 5:10 reminds me of the chlorine music video from Twenty one pilots

                                      • KFC THETRUTH
                                        KFC THETRUTH  13 hours back

                                        Pho¥o0oy,tyµo,toy,m,y to,µ†``.


                                        • Crayzy Luka
                                          Crayzy Luka  13 hours back

                                          Me: Dad I have a science fair at school!
                                          My Dad:

                                          • Carrie Schrock
                                            Carrie Schrock  13 hours back

                                            LLLLLLLLLLLLLLLLLLLLLIIIIIIIIIIIIIIIIIIIITTTTTTTTTTTTTTTTTT!!!!!!!!!!!!!!!!! THANKS FOR THE AMAZING CONTENT BRO/BRUH!!!!!!!!!!!!!! !!!!!!! !!! !! ! !

                                            • Thomas_Intensifies
                                              Thomas_Intensifies  15 hours back

                                              Video Idea: Make a giant umbrella and try and glide with it.

                                              • NL-L gamer
                                                NL-L gamer  16 hours back

                                                do a video on dry ice or a video on model rockets because i have a project please

                                                • wessel harm
                                                  wessel harm  17 hours back

                                                  how do ya clean it up?

                                                  • antracked 109
                                                    antracked 109  17 hours back

                                                    Dear mark rober. You have made a moving dart board. It would be awesome if you would make a moving basketball hoop pls

                                                    • Joni R2D
                                                      Joni R2D  17 hours back

                                                      3:33 how 'bout making this the new olympics logo?

                                                      • Ali Mcmullen
                                                        Ali Mcmullen  18 hours back

                                                        You're videos are so interesting and satisfying

                                                        • דן שלוה
                                                          דן שלוה  18 hours back


                                                          • PaxLionJax - MGTH
                                                            PaxLionJax - MGTH  20 hours back

                                                            NICE TSHIRT!!!

                                                            • Umer Gaming
                                                              Umer Gaming  21 hours back


                                                              • Peace J
                                                                Peace J  23 hours back

                                                                Yall used "Pata Pata". 🔥🔥🔥🔥🔥🔥🔥I love that song ❤️❤️❤️❤️❤️

                                                                • Wynie MSP
                                                                  Wynie MSP  24 hours back

                                                                  Wait i thought it was poison

                                                                  • ARMANDAS armandas
                                                                    ARMANDAS armandas  1 days back


                                                                    • MrCrazyMan Games
                                                                      MrCrazyMan Games  1 days back

                                                                      3:46 I just realized Mark was wearing a King 👑 of Random tee

                                                                      • Charles JSB
                                                                        Charles JSB  1 days back

                                                                        So, how's the scent of the yeast??? Yep, smells like jackfruit

                                                                        • Inty the Pro
                                                                          Inty the Pro  1 days back

                                                                          1 mounts already ಥ_ಥ

                                                                          • Skypizza
                                                                            Skypizza  1 days back

                                                                            Next video should be Mark Rober making real life web shooters

                                                                            • Eboni B
                                                                              Eboni B  1 days back

                                                                              you have the best vids ever

                                                                              • Internet Troll
                                                                                Internet Troll  1 days back

                                                                                Bob: Rage: YA PRETTY CONFIDENT AREN’T YA?!?!!!?

                                                                                • HC Flaming
                                                                                  HC Flaming  1 days back

                                                                                  Do a arragell hgv ideo

                                                                                  • Rainbow Husky
                                                                                    Rainbow Husky  1 days back

                                                                                    5:25 IM ALIVE >:>

                                                                                    • Tela Franklin
                                                                                      Tela Franklin  1 days back

                                                                                      Look at his shirt

                                                                                      • Steven G
                                                                                        Steven G  1 days back

                                                                                        Rent a pool. Fill it with cornstarch to make oobleck and drive a car on it fast.

                                                                                        • Hilda Puckett
                                                                                          Hilda Puckett  1 days back

                                                                                          Mark rober made a coustum of Bioshock and stranger things

                                                                                          • creeper izak
                                                                                            creeper izak  1 days back

                                                                                            Imagine swiming in hydrogen peroxide.

                                                                                            • creeper izak
                                                                                              creeper izak  1 days back

                                                                                              Your skin would be friiiiiiiiicked

                                                                                          • ṗëäċḧÿ ïü
                                                                                            ṗëäċḧÿ ïü  1 days back

                                                                                            #Thekingifrandom shirt

                                                                                            • Anthony GD
                                                                                              Anthony GD  2 days back

                                                                                              R.I.P Grant