Halloween Science Experiments with Kevin Delaney

-Give it up for our
resident science expert, Kevin Delaney,
ladies and gentlemen! Kevin, good to see you.
-Thank you, buddy. -Congratulations on the second
season of “Street Science.” -Oh, thanks.
-What is happening in this season, season two? -Oh, we’re going bigger. We’re
blowing up all kinds of stuff. We’re crashing cars,
dropping cars, chemistry,
all kinds of cool stuff, if you’re into
that sort of thing. -Oh, yeah, I’m into it. You always bring
something cool to do. This is a Halloween-themed —
-Right. -Some science experiments. What is the first one
you got for us? -It’s a spooky time,
so spooky stuff. -It’s spooky, spooky.
-So, we’ve got some dry ice. So, this is what we’re gonna do.
We’re gonna make some bubbles. But we’re gonna make bubbles
filled with dry ice. Now, dry ice is just solid
carbon-dioxide gas, right? So I’m gonna drop it in. And you’re gonna see
that it makes that fun vapor. You know, dry ice
is great to use at Halloween if you want to get
that foggy effect. And that fog is just a little
bit of CO2 and some water vapor. So there you go.
-Carbon dioxide and water vapor. -And water vapor.
Yeah, there you go. So, once it sublimates, which is transferring
from a solid to a gas — -I know what sublimates means.
-I know you know. I’m just telling for the benefit
of our friends in TV land. -Yeah, I know.
Yeah, of course. Please. I’mMisterSublimates. -Right. So now this is
what we’re gonna do. You got your glove on?
Okay, great. So I’m gonna just
put this over here. And I’ve got my vapor
coming out here. Now I’m just gonna
dip this in, and we get — There you go. There you go! So, carbon dioxide
is heavier than air, so the bubbles
don’t really float. They just kind of…flop.
-That’s so cool! Come on! -Yeah, it’s pretty fun.
There you go. -Ghost bubbles!
-There you go. Ghost bubbles. All right. So now
we got some more stuff. So come on over here.
-All right, buddy. -I’m gonna go
into the pumpkin booth. And then I’ll see you
in a second. -No. Seriously?
-Yeah. So you stay out there.
You want to go over there. -This was a punishment
that happened to me
when I was a child. They used to put me
in the pumpkin booth. -Here we go. Okay. What we’re gonna do here is —
You like jack-o’-lanterns? -Yes. -Jack-o’-lanterns
are a lot of fun. But after a while — After Halloween’s over,
they get kind of nasty, right? -Yeah, sure.
-And the last thing anyone wants is a rotten, hollow
orange pumpkin sitting around for —
I don’t know — four years, eight years,
however long it’s gonna be. So you want to
get rid of it, right? -Yeah, yeah, yeah.
-So what we’re gonna do is — We’re actually using
the same stuff. We got dry ice…
-Okay. -…and water. And we’re
going to put it in the bottle. But this time,
instead of making bubbles, we’re gonna pressurize it
by putting the cap on. -Now, why are you behind there?
Is everything okay? I’m gonna get you
out of there, sweetie! -I believe you, man.
I believe you, baby. Okay. All right. So now I’m gonna
pour this water in here. -You’re innocent, baby!
You’re innocent! I’m getting you out! -[ Laughs ] All right.
So, the water’s gonna go in. And now our bottle’s
filling with vapor, and we’re gonna pressurize
that vapor, put the cap on. -Oh, no.
-Put the bottle in the pumpkin and get rid of the pumpkin. -Now, do not —
do not try this at home. -Do not try this at home. And you’re gonna want
to cover your ears, too. You definitely don’t want
to try this at home. -Wait. Everyone
just did it immediately? You didn’t even wait for me. -Hang on a second.
Let me get my glove off. -No problem. Yep.
-All right. Here we go. -All right. All right. Here we go.
-There we go. Okay, all right.
Kevin, get out of there! -Now I’m getting out.
-All right. So now what happens? -So right now,
all that pressure’s gonna build up
inside of the bottle, and eventually it’s gonna push
against the walls of the bottle. And the bottle’s
going to probably fail and — Well, we’ll see what happens. Are you ready?
-Yeah. -So keep an eye
on the top of that bottle. -Oh, no! It’s close! -If it starts to —
Cover your ears, everybody. Ready? Here we go. Jack-o’-lantern. [ Drumroll ] [ Laughter ] ♪♪ [ Audience screams, laughs ] ♪♪ [ Cheers and applause ] -Trick or treat!
Trick or treat! You all right? You all right? Anything you want, Jimmy? Jimmy? -Wow! -I have a th–
-Wow! What was that?! Look at it!
Look what happened! [ Applause ] -Don’t do this
with your pumpkins at home. -No. Do not do this at home. Can we see that again
in slow motion? -Oh, look at that
jack-o’-lantern. -Oh, my gosh!
-Pretty good. Pretty good. Now, you all right?
You’re all right? You were — You were holding
yourself a little bit. -Yeah. -Don’t worry.
We have a thing for that. -Wow, wow, wow, wow!
-All right. -Wow!
-All right, you okay? -Yeah.
-You need to clean up? -I need a little clean-up.
-I got something over here. Come on over.
-Okay. Very good. -Okay. So, uh, trick or treat?
You like a trick? -I love a trick. -You ever prank somebody
by, like, TP’ing their house? -Never, would I ever! No! Never! [ Cheers and applause ] -They look very excited. Well, hang on a second.
Hang on a second. Okay. Yeah, okay. So, the problem is, like,
you have to throw the paper, and then, you know,
it takes a while. And then the dog starts barking, the neighbor comes out.
-It’s time-consuming. -And then before you —
Yeah, yeah, yeah. -That’s the only problem
I have with it. -So, what you want to do
is you want to — you want to use
Bernoulli’s principle. Are you familiar with
Bernoulli’s principle? -My principal —
Principal Bernoulli. Yeah, of course. He —
I love the man. -Aerodynamic principle.
-Yeah. -So, the Bernoulli principle is one of the main things
that keeps airplanes in the air. So, Bernoulli said that when fast-moving air
moves over a surface, it creates
an area of low pressure that allows lift to come up. High pressure pushes up here ’cause there’s
low pressure here. So if you blow across the top
of the paper towel… -[ Blowing ] -…you’re lifting
the paper towel. -[ Blows ] We get it.
Yeah, okay, yeah. -Okay. -I’m out of breath. [ Coughs ] -You okay?
-A little winded, yeah. -A lot of wind, yeah. So now we’ve got some leaf
blowers to do the work for you. The “Street Science” team
put together — We have over 100 rolls of
streamers and paper towels here. [ Cheers and applause ] So we’re gonna decorate
the studio for Halloween. -Let’s TP the studio!
-Are you all ready? All y’all ready? [ Cheers and applause ] All right. All right. And our cart has wheels on it, so we can aim it
at the audience. -Oh, interesting. Ah, fun. -One, two, three! Leaf blowers! ♪♪ ♪♪ -[ Laughs ] Yeah! Ohh! Nice! Right there! Hey! [ Laughs ] [ Laughter ] -We got it all the way
in the back. -Look at the Roots right there.
Oh, my God. -And the Roots. Great.
-Look at the crowd. Give it up,
ladies and gentlemen. Give it up for
Kevin Delaney, everybody!


  1. Luca Viggiani

    September 9, 2018 at 6:43 pm

    Interesting that there are more women in the audience than men. Ratio of about 6:1

  2. Rainbow Ram

    September 10, 2018 at 2:36 am

    3:38 trick or treat mother fucker

  3. Special G

    September 18, 2018 at 5:08 am

    The issue is who's gonna clean all that stuff?????😂😂😂😂

  4. TechyMark

    September 20, 2018 at 6:06 pm

    Great. That's all prankster teenagers need, ideas.

  5. Scott Button

    September 27, 2018 at 4:44 pm

    Why is Jimmy such a massive wuss ?

  6. Faasaak kkk

    September 30, 2018 at 2:42 am

    Idiots wasting paper

  7. Bert N Ernie

    September 30, 2018 at 4:21 pm

    If you watch the plastic bottle in the background the second the pumpkin explodes, the explosion caused the vapor to puff out.

  8. Jake Cars Reviews

    October 3, 2018 at 10:00 pm


  9. Dark Light

    October 7, 2018 at 7:47 pm

    3:39 How to make a quick pumpkin pie

  10. Jeremiah Strange

    October 8, 2018 at 1:27 am

    Jimmey Fallon….. Webster's perfect Beta male.

  11. Calaban2005 Vlogs and Gaming

    October 8, 2018 at 4:47 pm

    Dry ice bomb. That's definitely legal.

  12. Monkey D. Luffy

    October 13, 2018 at 2:12 am

    Yikes that trump joke though😂😂😂

  13. MissNumia

    October 16, 2018 at 7:23 am

    Was I the only one who covered their ears watching the video😂😂😂😂😂

  14. Spitfire Last

    October 20, 2018 at 2:19 pm

    Ryan Dunn welcome back!

  15. ana wilde

    October 22, 2018 at 10:08 pm

    I do the same stuff he did in the beginning at kids' birthday parties. We call it 'snowballs', and kids love it so much.
    There are so many other cool tricks you can do with dry ice

  16. Ferrer Jair

    October 27, 2018 at 1:51 am

    Wow nice halloween prank to kill

  17. sniperammow

    October 29, 2018 at 1:21 pm

    Lol this is very basic science though, should have done the double slit experiment!

  18. I_Dawg123

    November 2, 2018 at 2:52 pm

    I feel bad for the cleaning crew!

  19. Jessica Tran

    November 6, 2018 at 12:48 am

    I’m using AirPods and the pumpkin pop thing kinda scared me 😆

  20. isaac low

    November 6, 2018 at 6:51 am

    5.31 to 5.36,now thats what you call long winded


    November 8, 2018 at 9:02 pm

    now we know how to make a bomb thanks

  22. Bigshows93

    November 9, 2018 at 11:13 am

    The lawyers are probably the ones shitting there pants.

  23. Umaru Tuskino

    November 17, 2018 at 12:55 pm

    Jimmy loving science is everything 🤣💕

  24. Yeocheng Hock

    November 20, 2018 at 9:12 am

    Do it at your friends home

  25. Victor Ma

    November 22, 2018 at 10:43 am

    Where can you get liquid nitrogen ??

  26. viper

    November 26, 2018 at 9:44 pm

    And this is ladies and gentlemen how to create a dry ice bomb

  27. veera muthu

    December 6, 2018 at 5:56 pm

    The last one is coanda effect … Not Bernoulli principle .. that's got to do with velocity n pressure relationship !!

  28. mortuus

    December 8, 2018 at 8:02 pm

    His beard is amazing

  29. VA Libra

    December 12, 2018 at 3:05 am

    So extra jimmy

  30. Jatin Batra

    December 14, 2018 at 4:54 pm

    What if these toilet paper rolls were covered in some volatile liquid like acetone . And we would've needed a match to burn all people down at once !

  31. Levi Gomes Costa Junior

    December 15, 2018 at 10:43 am

    I used to do it as kid with my cousins, but we trew the bottles at people's yards or we buried into the dirt to see the explosion. LOL

  32. Amir Khosravi

    December 19, 2018 at 10:05 am

    damn that trump joke

  33. Sinan Seyidov

    December 26, 2018 at 11:15 am

    https://www.youtube.com/watch?v=ikfenaLfTKw new Childish Gambino song ! called Life The Biggest Troll!


    December 26, 2018 at 7:54 pm


  35. Samarth Kambli

    December 29, 2018 at 6:01 pm

    3:40 Jimmy FallOff

  36. owl96

    January 4, 2019 at 8:19 am

    When you realize this whole show was one big elaborate prank.

  37. RAYquaza 💚🐉

    January 4, 2019 at 5:54 pm

    Well I ain't cleaning that up

  38. L1vyH

    January 5, 2019 at 9:35 am

    I feel bed for the janitor that cleans the show lol

  39. He Who Laughs Last

    January 8, 2019 at 3:26 pm

    And on that day every Janitor that works there, quit.

  40. TheArmoredghost 63

    January 14, 2019 at 4:36 pm

    Janitor: SHIT!!

  41. DJ_whatever

    January 18, 2019 at 8:49 pm

    3:48 the exploding pumpkin landed a funnel better than I can

  42. Saurabh kumar

    January 24, 2019 at 9:00 pm

    all copied from ellen show

  43. AsgardBound

    February 2, 2019 at 9:30 am

    We get it, Kevin. You dislike Trump. Just do some science for us, huh?

  44. Josh Hall

    February 26, 2019 at 10:22 pm

    everyone saying, "If they taught this in school, I'd love science!!!," but the truth is, just doing experiments will help with nothing, I bet not one of you who've seen this can explain to me in the most detailed way possible, how these things actually work. Science needs to be understood, which is the soul purpose of 'Theory' lessons, because science isn't all about experiments and practicals.

  45. johnny klauer

    March 4, 2019 at 8:44 pm

    This science guy definitely needs to cool down a little bit more. I wish he wouldn't rush through this epic, fantastic show this fast ://

  46. Poloulou

    March 6, 2019 at 3:17 am

    Imagine pulling up to someone’s house with that tp machine

  47. Santosh P.S.S.

    March 7, 2019 at 1:53 pm

    Does this guy ever laugh?

  48. Santosh P.S.S.

    March 7, 2019 at 1:57 pm

    You get rid of the pumpkin by blasting it into pieces all over?

  49. Daniela Arias

    March 8, 2019 at 4:59 pm

    Jimmy reacts to the high noice as if he came from the hood and he knew what it’s all about 🤣🤣🤣 I see you Jimmy

  50. Sett

    March 14, 2019 at 3:21 am

    That pumpkin looked like JFK's head

  51. Tamihana Hemi

    March 17, 2019 at 10:09 am

    I'm going to do that at home haha

  52. KingK21 !!!

    March 19, 2019 at 3:22 am

    After my Corden and Conan binge…Fallon fkn sucks.

  53. Mr MixedGamerz

    April 12, 2019 at 12:58 am

    If you owned one of those you would be arrested for owning a bomb

  54. Tanvir Md

    April 15, 2019 at 6:19 am

    its awesome

  55. 김경준

    April 15, 2019 at 5:13 pm

    Kevin delany more like kevin the lady

  56. P. G

    April 20, 2019 at 8:02 am

    Please don't waste paper

  57. Brahmaduth .S

    April 20, 2019 at 4:04 pm

    "My principal bernouilie"

  58. Alex Schonach

    April 23, 2019 at 6:23 pm

    Bruhhhh💀💀💀 that laugh 3:10

  59. T23 Productions

    May 7, 2019 at 9:48 am

    3:38 epic action

  60. Quinn Jenkins

    May 8, 2019 at 3:58 am

    This man is a dime store Steve spangler who was on ellen

  61. Arun AKAN

    May 19, 2019 at 6:12 pm

    Did someone came after watching the ellenshow,through here watching the same TB blown😏

  62. Abdul Basith

    May 19, 2019 at 7:43 pm

    my principal bernouli lol

  63. TheMeme King

    May 21, 2019 at 9:19 pm

    I definitely will do that bottle trick and but it under my brother's bed

  64. WhySeeF

    May 26, 2019 at 11:42 am

    the roots covered in papers is the best thing i've seen today

  65. Jeffery Howdyshell

    June 4, 2019 at 5:26 pm

    I have a science question? If an average fly is able to fly appr. 35 mph, how is it able to fly around inside a car moving 70mph. Why does the fly not fall to the back of the car?

  66. Dead

    June 7, 2019 at 5:09 am

    The cleaning lady was pissed that day.

  67. Smac N’ Cheese

    June 9, 2019 at 4:15 am

    I hereby ban jimmy from existing on Halloween or near it so leave

  68. deadpool shitbiscuits

    June 10, 2019 at 10:12 am

    Where is the slomo guys when they need them?

  69. Random Stuff

    June 23, 2019 at 6:36 pm

    tubby lumpkin's gonna clean all that

  70. Youngassassin 1190

    June 26, 2019 at 4:15 am

    Honestly I hate when people make trump jokes because that’s all the comments are about

  71. Suchitra Mallela

    June 29, 2019 at 2:00 pm

    Just like ellen show

  72. Butthole Bandit

    July 9, 2019 at 4:20 am

    Where do I buy hot ice

  73. yash wanted yadav

    July 10, 2019 at 4:32 pm

    Science bob is best

  74. kyle durkee

    July 24, 2019 at 12:54 am

    the band is pissed lol.

  75. Gulitz Tse

    July 25, 2019 at 9:51 am

    that would be a cool new way to crowd control protesters

  76. BlueJ

    July 28, 2019 at 10:50 am

    My question is, who's cleaning that up? Lmao

  77. Lilah Masterdotter

    August 2, 2019 at 1:22 am

    Me: Wow… I want one to set on my doorstep! No more kids by my door at Halloween! At least not a whole kid 🙃!
    Kevin: Do NOT do this at home!
    Me: Ooh… I will….

  78. Penguinsucker69

    August 3, 2019 at 3:37 am

    I feel sad from the janitor

  79. gilbert reyna

    August 4, 2019 at 4:32 pm

    I think I figured out how they killed translucent from my boys ouch

  80. Colton Ventry

    August 13, 2019 at 6:32 pm

    This was thr origin of the green goblin pumpkin bombs

  81. Mya cascio

    August 18, 2019 at 2:38 am

    I feel bad for the janitor

  82. The Llanas

    August 18, 2019 at 9:01 pm

    like if you also covered ur ears at home

  83. Blake Burnell

    August 20, 2019 at 7:19 am

    Spooky scary Skelton

  84. PandaBeatBox

    August 23, 2019 at 4:30 am

    The guy on the right was so surprised 3:45

  85. siva nesh

    August 25, 2019 at 3:31 pm

    The best actor award goes to Jimmy

  86. noHomos

    August 27, 2019 at 1:29 pm

    I just love smart fun nerd science lover they are amazing


    August 29, 2019 at 12:47 pm

    Something about this guy i like him remind me of allan from hangover

  88. Stealth57

    August 31, 2019 at 1:48 pm

    3:40, Jimmy, you're an idiot. Overacting is not your thing.

  89. Omkar Shidore

    August 31, 2019 at 8:46 pm

    This jimmy guy is funny, he should have is own comedy talk show.

  90. world of teddies

    September 7, 2019 at 11:15 pm

    That guy kicks ass

  91. ahmed ali

    September 8, 2019 at 5:42 pm


  92. Gameboy

    September 8, 2019 at 8:03 pm

    when u put at 3:57 at 0.75 speed they seem so drunk xd

  93. Alexandre S.

    September 9, 2019 at 8:32 pm

    Janitor: Hell nah ! I quit .

  94. Amir Kodi

    September 11, 2019 at 8:08 am

    Wow nice TP throwing machine

  95. Michael Brunner

    September 23, 2019 at 1:43 pm

    Science expert or middle school science experiments?

  96. Bella Baasch

    September 29, 2019 at 3:12 pm

    He reminds me off Jack Black

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