Fiorella D’Alessandro
Fiorella D’Alessandro

For the ladder one just lay on your stomach,keep your legs straight(don’t move your legs) and use arm strength to pull yourself to the end

9 timmar sedan
Melanie Johansen
Melanie Johansen

is this really your second science class?

9 timmar sedan
BigMan Bossk
BigMan Bossk

Imagine if they were taking satellite images for google maps just as he did this!

9 timmar sedan
Watch your profanities
Watch your profanities

Bro this guy is on Outragious Acts of Science.

9 timmar sedan
Thomas Perez
Thomas Perez

Mark be like Eli get away!!!!!!

9 timmar sedan
Bold Poudel
Bold Poudel

I think one guy just played a nepali song

9 timmar sedan
Veee Beee
Veee Beee

❤️

9 timmar sedan
Landon Tweet
Landon Tweet

I love golf ⛳ to

10 timmar sedan
True English Patriot
True English Patriot

should of put poison in it

10 timmar sedan
Karin Hansen
Karin Hansen

Mark: time to be favorite uncle Kids: what are we gonna try this time?

10 timmar sedan
jonathan pailloux
jonathan pailloux

Combien de décibel ?

10 timmar sedan
Feroze Khan
Feroze Khan

0:06 It doesn’t look simple

10 timmar sedan
Bare All For The Barre
Bare All For The Barre

put a bucket in the water but upside done then put were hand in it

10 timmar sedan
nechamah613
nechamah613

Correct that the pandemic would spread fast but incorrect about where it would come from and we sure are not prepared.

10 timmar sedan
Kristin Carlson
Kristin Carlson

HEADPHONE USERS!WARNING lol i did that and i jumped

10 timmar sedan
Jean-Marc Jamois
Jean-Marc Jamois

Maybe on days you cant do science class you can have another science youtuber do it instead, maybe one of the small you tubers your trying to promote!

10 timmar sedan
Daniel Schilling
Daniel Schilling

Answer: They measure their masses and with that they can calculate their weight.

10 timmar sedan
X BOY
X BOY

0:01 are you crazy they are gona bite you

10 timmar sedan
AWannaBeArtist 131
AWannaBeArtist 131

Right before the yoga ball, an as came up. (/ω\)

10 timmar sedan
Yammy_Cookies Roblox
Yammy_Cookies Roblox

I did this at year 2

10 timmar sedan
Heather Clark
Heather Clark

I want to work a NASA

10 timmar sedan
Heather Clark
Heather Clark

The dude messed up his own car😂

10 timmar sedan
someone 306
someone 306

Y not a real bomb?

10 timmar sedan
legohead 8
legohead 8

my teacher is making us watch this video for online school but i've already seen it :D

10 timmar sedan
Oviya Senthil
Oviya Senthil

no more school = more fortnite

10 timmar sedan
Asha Lost
Asha Lost

45K people were trembling so hard from fear of sharks that they missed the like button

10 timmar sedan
Noor Nasri
Noor Nasri

I thought they'd get stuck inside and nearly die, guess that didn't happen lol

10 timmar sedan
Feroze Khan
Feroze Khan

Retired NASA Engineer and his mildly unhinged friend compete in 3 challenges to see which one can cause the most bodily harm to inanimate objects.

10 timmar sedan
DKgaz
DKgaz

4:35 hehe

10 timmar sedan
Jokubas Sutkus
Jokubas Sutkus

20

10 timmar sedan
ShinyToast
ShinyToast

0:43 poor kid

10 timmar sedan
JACK LATHROP
JACK LATHROP

who's here cause there science teacher assigned it?

10 timmar sedan
The Real Benjamin
The Real Benjamin

Did this with the wellbeing worker at my school, won most of the times, good strat

10 timmar sedan
Luke Bayer
Luke Bayer

f

10 timmar sedan
IPlayGamez
IPlayGamez

Mark just said light the fires, he doesnt want 20 million trees planted.. he wants 20 million trees burned lol

10 timmar sedan
Daz
Daz

It’s just a scratch mate

10 timmar sedan
Stephen
Stephen

handshake: main germ-spreading factor fist bump: still spreads germs middle finger: perfectly safe

10 timmar sedan
PRO GAMER
PRO GAMER

There is a number that they would multiply their weight by because they are in a low gravity enivrement it would be if they are in 1/x the gravity of earth they would multiply Their weight by x

10 timmar sedan
bokyproky
bokyproky

9:25 i could not stop laughing

10 timmar sedan
Ben Korpella
Ben Korpella

Can I get a link to the song at the beginning?

11 timmar sedan
DragonFireGaming
DragonFireGaming

I wish this was how the teachers taught with online school

11 timmar sedan
Andrew Powers
Andrew Powers

The kids and I love your videos. We immediately went and did the paper clip and pepper experiments after watching your livestream. BUT now we have more questions! When we put our paperclips to float in the bowl, WHY do they seem to stick to each other? I know they're steel, but they're not magnetized, and they don't seem to act with any polarity the way magnets would. But it's nearly impossible to get them to float separately-- they always want to clump together like a giant paperclip raft in the middle of the bowl.

11 timmar sedan
Luxury Trading
Luxury Trading

It’s not accurate

11 timmar sedan
Zilsos
Zilsos

Rick:AIMBOT ON Me:THIS SHOULD BE ILLEGAL

11 timmar sedan
Navi P7701
Navi P7701

The oval shape for the fart spray presser is ingenious

11 timmar sedan
Walt R. Buck
Walt R. Buck

"How to waterproof your hand." Me: "It is waterproof." Mark one second later: "It is actually kinda waterproof."....

11 timmar sedan
Epic Memer
Epic Memer

He legit used plague inc. Lol

11 timmar sedan
david stuart
david stuart

coolio :) - Snooker next? :)

11 timmar sedan
Kot Alik
Kot Alik

SUPER JOB!!

11 timmar sedan
Max6492ful
Max6492ful

gates knew about corona

11 timmar sedan
mayukh k chanda
mayukh k chanda

"Hide from Putin online" was soo cool. (The info bar)

11 timmar sedan
hpod3sx
hpod3sx

It wasn't a car, it was shell of a car - no engine, no floor, no suspension... CHEATER!

11 timmar sedan
Random Dude
Random Dude

Hmm......................but how much pee is in a liquid sand hot tub?

11 timmar sedan
Munchkin Snow
Munchkin Snow

6

11 timmar sedan
Burak Tepe
Burak Tepe

Dont use head phone outsite. Car might be hit you.

11 timmar sedan
The Real Benjamin
The Real Benjamin

Mark’s upload schedule before Coronavirus: Once a month Mark’s upload schedule now: Multiple videos in a month

11 timmar sedan
not Bertie
not Bertie

Is anyone here during Corona Virus?

11 timmar sedan
Emma B
Emma B

Mark: worked at NASA on the Mars rover Also Mark: My dream job is to teach physics to a bunch of high-schoolers

11 timmar sedan
Arik Raihan
Arik Raihan

Me reads title ; me thinks oh easy aerogel dust duh 🙄

11 timmar sedan
Freedom 173
Freedom 173

How do magnifying mirrors work? They're scary

11 timmar sedan
Amy Bickford
Amy Bickford

How fascinating my peers

11 timmar sedan
Andre Sukianto
Andre Sukianto

use a tension rope to pull the astronaut body where the tension is equal to 9.8m/s2?

11 timmar sedan
queen bunnie
queen bunnie

Wait this is 3 months ago HOW I thought it was a year ago

12 timmar sedan
Kylo Ren
Kylo Ren

Why doesn't he have a show on Netflix or Natgeo?

12 timmar sedan
LifeAsANoun
LifeAsANoun

Sooooo... I don't know about your conclusion. ◸ ◹ A test: *you'll need a highspeed camera and an airtight box filled with the different mediums* Tap a tuning fork within the medium. ◺ ◿ Look at how quickly the tuning fork vibrates in each medium. Get another trillion views. Sound travels faster in helium than in "air" (the mixture of [mostly] nitrogen and oxygen we normally breathe). The velocity (v) of a sound wave is equal to its wavelength (λ) multiplied by its frequency (f), v = fλ. The speed of sound in normal air is ~345 meters per second. In helium that speed is ~1007 meters per second, and ~134 meters per second for sulfur hexafluoride. My hypothesis: Your vocal cords aren't moving faster or slower -- the frequency of your vocal cords' motion stays the same -- the energy transmitted from the vibrating vocal cords is being applied to the different mediums. This changes the speed of the sound wave. By changing the medium (the atmosphere) a sound wave travels faster or slower. The frequency of the vocal cords' motion remains unchanged, but the speed the waves are carried away through the various mediums do. I love your work.

12 timmar sedan
nawath khoun
nawath khoun

Next episode: Man turn himself into pickle

12 timmar sedan
Wan Ikmal
Wan Ikmal

Minecraft : Wait...That's *illegal*

12 timmar sedan
unknown wolf player
unknown wolf player

How i won the science fair for my first time: me and my neighbour made a racing drone with camera

12 timmar sedan
Finn Fantastic
Finn Fantastic

He knew it @Corona

12 timmar sedan
jayl1
jayl1

Just had a few packages stolen. I considered setting up a sting operation, cause I was seething with rage. Can I just buy one of your traps?

12 timmar sedan
Stephen Stukey
Stephen Stukey

yeet

12 timmar sedan
Spicy_Citrus
Spicy_Citrus

I would do anything to have Mark as my uncle.

12 timmar sedan
Lanz Ye
Lanz Ye

MARK can you be my uncle

12 timmar sedan
Daniel Chua
Daniel Chua

they have a magnet that pulls them at a force of 9.81N onto a weighing scale

12 timmar sedan
Matias Chavez
Matias Chavez

cool

12 timmar sedan
mobile grinder
mobile grinder

and i thought i was smart for my red stone water dispenser in minecraft

12 timmar sedan
Landon W
Landon W

When she didn’t shake the other students hands like NOPE

12 timmar sedan
Sem Speelt Spellen
Sem Speelt Spellen

Corona beer Corona virus Hmmmmm?

12 timmar sedan
Crazy Christian Gaming
Crazy Christian Gaming

Make a ooo bleck video

12 timmar sedan
Remy Simpson
Remy Simpson

I didn't know how big brain fish were

12 timmar sedan
Flaming Remy
Flaming Remy

Imagine if you put your entire body under it and then the air ran out

12 timmar sedan
Coopa Con
Coopa Con

26 drops

12 timmar sedan
Garry Nichols
Garry Nichols

Way better than Bill Nye! Thanks

12 timmar sedan
WarmerParty386
WarmerParty386

Did Bill donate to Team Trees?

12 timmar sedan
Asriel Wolves
Asriel Wolves

Legit the guy on the thumbnail looks like Faze Jev

12 timmar sedan
Áron Vetchý
Áron Vetchý

I was actually crying.

13 timmar sedan
Kebrom Gr
Kebrom Gr

You make a good point in a short video so we watch the whole thing. Mark: the next pandemic will be worse than Ebola 2020: Corona virus 🦠

13 timmar sedan
Hayden Harpe
Hayden Harpe

Hey you, yes you. Do you want to know how to be the favourite uncle? Don’t spend your time reading my comments and go ask them chances are even the entire street thinks of you as the cool uncle

13 timmar sedan
Jayden Bennett
Jayden Bennett

You like the au come to the nz m8

13 timmar sedan
Oliver Riding
Oliver Riding

Oooo, little CpG grey video there, he would definitely approve the scientific method here

13 timmar sedan
II GenZombSii56amtrak
II GenZombSii56amtrak

MY EARS BRAH

13 timmar sedan
Kyle Mello
Kyle Mello

"A Duck"

13 timmar sedan
II GenZombSii56amtrak
II GenZombSii56amtrak

It sounds like a ship horn

13 timmar sedan
India M
India M

astronots probauly use a button that makes gravity in there suit by spining around super fast

13 timmar sedan
Matos 107
Matos 107

They wheigh themselfs with mass? Like a current or something that measures their mass. Cause wheight is dependant on gravity, but mass is constant.

13 timmar sedan
Charlie O'Kane
Charlie O'Kane

For you’re next stream can you answer this question *What is the difference between Electrons And PhotoElectrons*

13 timmar sedan
Alvin Jay
Alvin Jay

Mark:Throws Water Melons In a Tall Tower Watermelons:What did we ever do TO YOU??

13 timmar sedan
Husain Contractor
Husain Contractor

LOL mark has a corona bottle in his hands

13 timmar sedan
Mombie Chronicles
Mombie Chronicles

Great job Teach’

13 timmar sedan