Added: 3 months ago
From: SteveSpanglerScience
Views: 82,183
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  • Notice that EVERYONE of his videos end in 'sick science!'.

  • i tyred this and it didnt work

  • this is what youtube is about! content! cool stuff!

  • its caused by a difference in pressure. warm particles more towards the top while the cold moves towards the bottom. its funner when you make a cloud in a bottle by putting smoke into a bottle with hot water. put the cap on squeeze the bottle then let go and bam. cloud in a bottle.

  • whut vjaros1 said

  • Oh man better put those safety glasses on, water and ketchup make some deadly mixtures.

  • Increasing Density~!. :) Pretty Cool though.

  • it's because when you squeeze the bottle the air pressure lowers so the ketchup therefore falls to the bottom.

  • 1 word. pressure

  • thats cool

  • he is increasing the density of the water so the packet is less dense.

  • @vjaros1 Water is noncomprensible, therefore you cannot increase the density. however the air bubble inside the packet is compressible. When the bottle is squeezed, you're really increasing the density of the air in the packet causing it to be heavier and sink.

  • There is a tiny amount of air in the ketchup packet - which is why it floats. When you squeeze the bottle, it increases the pressure, the liquid cannot be compressed, so it compresses the tiny amount of gas in the ketchup packet, increasing the density and allowing it to sink.

  • AKA a Cartesian Diver <- google it

  • Combine that with a tornado tube, that is something to see.

  • the air pressure in the bottle causes the packet to sink. when you squeeze you increase the pressure. when you release you decrease the pressure. or is it the other way around??

  • as pressure increases volume decreases which forces the ketchup packet down

  • this can be done with a ball point pen cover and blutack

  • as pressure increases volume decreases which forces the ketchup packet down

  • wow!

  • the density of the water increases, putting more pressure on the ketchup, then it shrinks and is more compact so it sinks

  • as he squeeses it the dencity of the water increaces

  • @fr0z1234567 wouldn't that produce the opposite effect to the ketchup sinking?

  • you idiots don't question the magic of sinking ketchup i think we need to all worship this amazing thing

  • When you squeeze the bottle, you are compressing the air bubble in the ketchup packet. This reduces the buoyancy of the packet. Since it just floats normally, the reduced buoyancy causes it to sink. Water is far, far harder to compress than air, so there is virtually no change in the density of the water from squeezing.

    This is similar to how the air in a scuba diver's BCD will be compressed as they dive deeper, leading to reduced buoyancy.

  • Pressure

  • I'm going to decorate the ketchup packet to look like an octopus.

  • it works because water is an incompresable fluid and air can be compresed to a density greater than water (this is done when you squeeze) and sink.

  • that happens because he is a jedi =P JK

  • ;O ;O ;O ;O ;O ;O TY STEVE

  • @teh4ten except if the packet's density is the less, it would float! 6th grade physical science!

  • idk

  • I think it works because you squeezed the bottle

  • @cataclysmicnothing thank you captain obvious

  • @cataclysmicnothing You don't say? xD

  • Cartesian Divers

  • couldn't you also use a pen cap?

  • As pressure increases, density increases, the density of water is 1.0 the density of that ketchup is eh roughy the same, him squeezing it adds pressure, inturn adding density to the space around it, and since the ketchup packets density would be less then the area around, it would sink, 6th grade physical science.

  • my mad science class teached us to do that its really easy

  • @loveheart626 Well, your grammar teacher didn't teach you well. It should say "My mad science teacher TAUGHT us HOW to do that, it's really easy.

  • @amandaice255 I think that he was saying that he took a class about "mad science" but yes your grammatical corrections were greatly useful, and I do enjoy that you found it necessary to correct him.

  • the air in the packet gets compressed

  • density.

    

  • if god sqeezed the world would we float

  • Witchcraft!

  • I Saw This As A Magic Trick On Activity T.v Lol!

  • YEAH!!! NOW I GOT SINKING KETSHUP!

  • the density of the water makes it float and sink

  • That works because the force of buoyancy is working to make the packet float and when u squeeze the bottle the packet doesn't have any force to go ip

  • how do u get it back out?

    

  • i luv the music :)

  • It doesn't work! D:

  • It worked

  • the pressure is what makes it sink and because there is no air in the bottle the water finds a space to go in when you squeez the bottle

  • Taco Bell packets dont work. I just tried it with Fire and Hot; they didnt work.

  • 1 word... pressure

  • Ok, I have the ketchup packet, the bottle, and the water, but does anyone know where I can buy some of that adult supervision?

  • @RCT3rox Why do you unoriginal morons have post that on all his videos.

  • water pressure

    

  • Again, why the hell do you need safety glasses for this?

  • @CertifiedBad4ss well the cap could fly off the bottle but still why would it

  • so.. ketchup is compressible?

  • @andreirocks1992

    No, no liquid is compressible.

  • Obviously the packet just wanted to explore the bottle more, duh.

  • well i dont know what theese science words are but i think it is becuase when u squeze the bottle the pressure goes up and hits the top of the bottle witch then it bounces off and goes down pushing the packet down with it and when u unsqueze it the pressure dissapears

  • i did thi swe made cartesian divers and we had hooks on them and had to pick up a thing in the bottom of the bottle it was awesome

  • I had no Adult Supervision... now i have no arms

  • How is that science

  • Heinz ketchup on burger king?

  • It is so sick!

  • its in an air bubble<.<

  • cool beans :)

  • Cartesian diver!

  • what ketchup did you use???

  • Here's my conclusion, Since the catsup is just barely floating, it just barely has a mass less then the water. So when you squeeze the bottle the pressure changes and it sinks, same when you let go. (it floats up)

  • its because water cant be compressed so when you squeeze the bottle, it compressed the ketchup packet making it denser than the water causing it to sink.

  • It's just pressure. The ketchup has a mass barely less than the water, when the density of the water increases (e.g. when the bottle is squeezed); the ketchup sinks.

  • @NarlepoaxIII so if the density of the water increases and the density of the ketchup packet remains the same, shouldn't the packet float even more? And how can a ketchup packet has just barely less mass than one liter of water, its mass is a lot less than the water in the bottle. I litre of water is 1 kg which is around 2.2 lbs. Let's say the ketchup packet weighs half of that, that is still one pound. And ketchup packets are obviously less than one pound.

  • cyril takayama use this trick, thanks for sharing

  • @mrlaokids1235 He doesn't need them all the time, but chemistry teachers make you wear them anyways. Just a part of the whole experiment routine, I guess.

  • Ok you know you sometimes don't need those glasses

  • @mrlaokids1235 oohhh but you MIGHT, the water could just magically squirt into your eye :O ;D just joking

  • @mrlaokids1235 but they r cool :D

  • @mrlaokids1235 You could get Ketchup in your eyes! And believe me, you don't want that to happen.

  • @mrlaokids1235

    its to show good practice.

    

  • @mrlaokids1235 You don't know, the water could burn or whatever!

  • @mrlaokids1235 Ketchup has acid in it.

  • @mrlaokids1235 You should always use glasses

  • The ketchup packet is reacting to the pressure in the water.

  • The sachet floats as it contains gas making it less dense than the water. Squeezing the bottle in turn squeezes the ketchup sachet. Any gas in the sachet is compressed and the density of the whole sachet becomes greater than the water, so it sinks. Submarines float and sink the same way by controlling how much gas or water it contains in special surrounding walls.

  • Water pressure squeezing it down. Vice versa if you squeeze from the bottom.

  • That ketchup packet is screwed...

  • wow. next 399 videos pls. this is an interesting channel.

  • Water pressure

  • water is an incompresible fluid meaning that when you squeeze it you compress the air increasing the density making it denser than water making it sink

  • i love this guy's tshirts!!!! theres a different colour in almost every video:D

  • magnets?

  • Does it have to do with the density of the water

  • It's the number of E numbers in the ketchup. Affects the gravitational pull from the moon making it sink or float depending how close he is to the moon. That's why you don't see his legs. He's running.

  • maybe by the weight? (im in 5th grade)

  • water pressure! we did this in school before

  • The pressure on the bottle makes it sink and when you release the pressure (stop squeezing) it rises

  • Changing density i think

  • It's because the air in the packet

    Not all packets eork

  • It's kind of like u could call it a ketchup barometer

  • I remember as a child little games in small bottles where you squeezed and a little diving thing with a hook went to the bottom and you tried to pick things up. They were in small bottles about 20 ounces.

  • we did this in science class last year for a lab but with a pen cap and clay called like deep sea diver or something!

  • i thought it said dividing ketchup

    

  • lol

    

  • cool

  • My favorite science teacher had a Cartesian diver that was tiger shaped. I loved that thing.

  • i bought your cartesian divers kit like 3 or 4 years ago love you!

  • nice

  • amazing xD!

  • omg who the heck dis likes this this is fun for little kids lol

  • Can't compress water. So the only thing that can compress is the air in the packet. Upon compressing, it loses its boyancy. ?

  • nice vid

  • I tried this and my family was amazed.. LOL!!

    

  • cool

  • Pessure

  • That's so kewl!

  • Magic

  • I tried this it is funn!!

  • Nice, cartesian divers rule! I made one of those once.

    It's really difficult to keep it in the middle of the bottle though. You constantly have to correct the pressure.

    This is because the depth of the diver is an unstable process. If the bottle would be infinitely deep (in theory) it would keep sinking faster and faster. Or surfacing faster and faster.

  • Cool!!

  • its called a cartesian diver- learned that in 8th grade science. it works when you increase the pressure inside the bottle. P.S.- FIRST!!!:)

  • Cute :)

  • Hmmm

  • Buoyancy

  • cool!

  • This happens because of the bouyancy, Im doing this in science class working on it now. Thanks for the help, If i get an A on the project I will subscribe.

  • no idea :) presion?

  • It is because of the pressure of the water and the pressure of the squeezing

  • squeezing increases the pressure applied on the ketchup packet thereby causing it to sink.

  • MAGIC!

  • cool

    

  • The pressure around the ketchup changes?

  • i did something like this in science class. when u squeeze the bottle it doesn't make the water more dense because its not possible. so instead it makes the ketchup or the air in the packet more dense thus making the packet sink

  • i did something like this in science class. when u squeeze the bottle it doesn't mkae the water more dense because its not possible. so instead it makes the ketchup or the air in the packet more dense thus making the packet sink

  • Hahaha I tried that and it worked

  • That happend because of the water pressure when you pressed the bottle

  • And auto correct corrected me I meant to say spelt.

  • Contracting air in the packet increases the density of packet

  • seen it, done it, love it. you should do something using explosions, thumb up if they should

  • water pressure forces the ketchup to condense and get heavier thus it sinks

  • It can aslo be done using a pen lid

    Does it have something to do with the air being compressed when you squeeze the bottle?

  • It can also be done using a pen lid :3 i cant remember how it works though >.<

  • Cool

  • it would be cool if the packet burst

  • increased pressure causes the packet to compress and increase in density while the water stays the same density?

  • awesomeeeeeee

  • Omg. that's crazy.

  • The solution is simple, its magic.

  • omg omg i dont knwo howwww 1st

  • yeah LOL

  • Thats so funny :D

  • This is So awesome!! xD

  • Increasing the pressure on the bottle increases the pressure on the ketchup packet decreasing the volume of air in the packet increasing its density, making it heavier than the water around it.

  • I think its by the force of water

  • why????

  • All to due with pressure..

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