David Letterman - Kid Scientists and the Glowing Foam

[Vblade45]

That girl isn't naturally blonde is she :D

[Lapua05]

Damn commercials >:|

[ryguy910]

0:01

[windex1234]

People applaud every time Letterman farts gezzzz........

[foxygaga100]

wooow



[hellopeople001]

thumbs up if your sick of people asking you to thumbs up if you agree with them because they want their video at the top. (lol, yay for hypocrisy)

[n3rdbear]

That is one smart blonde.

[watanabesaburo]

All you want to do is go home..

[shadowdark911]

readlly cool.....kinda funny

[MarcIzKool23]

i like that experiment

[killingmesoftly1337]

thumbs up if u saw a dm ad

[michel19612009]

pour and backup FAST omg

[michel19612009]

dam FUCKING adds

[AgentTheGreat]

Let's really start a campaign to not buy any products advertised on YouTube. How does that sound?

[padla4]

u dont want to drink them hahaha

[jml8841]

@padla4 U want to drink your dads cum you fag

[lali1400]

the foam was just coming out lik a whole bunch of worms

[TheSuicidalChipmunks]

Jizzed...in.,.my beaker

[Nemesis0300]

There are ads after the vids that don't let me watch the fucking video again.

[er6789er]

That was pretty darn cool! and funny!!!

[Kedchup]

1:55 Look at her finger! Haha, she pwns Dave!

[HIIMRAVI2]

Omfg i think i just saw dave run

[COOLGIRL8124]

wow

[alquiora]

Why Letterman never acts in a film. He would make one hell of a comedian!

[scarstripes9]

these ads have the most stupidest products

[MrNikoladex]

fck commercials

[Idontnoanythingdou]

I watched this just for the commercial! ;]

[shuffleman321]

☀

[TheGnarlyy]

#OMG

[jokkimand]

Wich cemical is they adding to start the reaction?

[LauraWish]

hehe, I just love this little girl she is such a smartass :D

[niertap]

hells yeah ohio

inb4 utoob comercials suck

[vhellas37]

her come the commercials on youtube.. the end is near!

[ynOt10786]

@vhellas37 Press F5 on your keyboard to skip the ads.

[Gukkke]

That's a bright kid

[MRMONEYMAN72294]

What was that girl's name who did the trick with the fire?

[Rogsouza]

Maureen, you're nuts.

[rheographics]

that was fantastic heather

[MrPillyg]

i tried out to be on but didnt make it :(

i think i should have replaced the corn starch 1

i got to melt a penny and ooze the copper out

[Intervene]

Cool stuff!!!

[HeartGoldMVP]

that boy in the middle's name is Youcef Hadjarab HE USED TO BE IN MY CLASS

[morerad123]

he is my best friend.

[HeartGoldMVP]

who are you, anyways (did you go to lincoln or kennedy pi plus, or arabian school with him?)

[morerad123]

yup, i went to arabic school and we are good friends.

[sidiqmk]

@morerad123 after he's been on tv?

[Dirtfire]

Lots of fish and squid use bioluminesence. Did I spell that right? I think I did.

Smart kids.

[ErichoTTA]

Woah, really cool.

[ionuorah]

........smart ass

[MagicMaureen46]

Why did you use the a-word? Especially on an innocent video like this, featuring kids? This is almost as bad as the person who used the f-word. Think if little Heather is watching this! Please watch your language!

[hinduw]

beautiful kids, happy birthday heather!

[slygirls09]

happy birthday, heather! whoa that's so cool!

[pokemonmaster607]

amazing.

[George32027]

FUCK ADS!!!!!!!!!!!!!!!!

[hinduw]

youtube never used to be like this..

[MagicMaureen46]

I can't believe you would use the f-word! Especially on a cute, innocent video like this, featuring kids! What is wrong with Internet people??? Do you talk like this in real life? It is very offensive!

[George32027]

Haha I hope you're kidding but I feel you're not. Haha.

[residentevil808]

eww look like poop

[damanjeff7]

kimmel? lol

[BoxersWorldwide]

Fuck you! Lettermans the man!

[jdkjkjdkjdks]

Kimmel is a joke.