How polarity makes water behave strangely - Christina Kleinberg

[@karirosenelson]

Sometimes I wonder if people just go around youtube disliking videos. For real. This description would have helped me even in college chemistry!

[@thegrandimperialist168]

2 years later. how you doing?

[@nahfid2003]

@@thegrandimperialist168 two months later. How you doin

[@8eatxzz]

4 days later, how you doing?

[@Gabo-wg3dv]

@@8eatxzz 1 day later, how you doing?

[@Gabo-wg3dv]

pretty sure there are bots

[@SuperHeroR]

Water is amazing. Took a college class: Hydrology, and I can really see how much we take water for granted. It is very unique, probably the biggest reason, Earth has life.

[@nullvibes3502]

How’s life 10 years later bro

[@nohandler1493]

@@nullvibes3502

[@noblevenom2858]

u ded yet?

[@nikhilsingla3494]

Education with animation is perfect. I love this type of learning.

[@brishti_chakraborty]

Based on my knowledge, oxygen attracts the electrons because it is more electronegative than hydrogen. Electronegativity is a measure of an atom's ability to attract electrons in a chemical bond. Oxygen, fluorine, and nitrogen are the most electronegative elements. I believe that water's polarity has nothing to do with the size of the oxygen atoms. Again, this is based off of my knowledge. However, the rest of the video was nicely done and informative. That is what I love about TED-Ed videos. I learn a lot from these videos. I really appreciate the time and effort these people put into making videos. Thanks!

[@fangzhang9376]

Well, the electronegativity of an atom is determined by multiple factors, one of them being the neuclear charge, and oxygen does win over hydrogen here by having more protons. Of course it's not the only factor (e.g. a sodium atom has even more nuclear charge but has very low electronegativity). There's always a fine line between keeping things simple and concise, and becoming misleading or straight up incorrect.

[@greggstrouse1854]

Thank you, Christina, for helping me demonstrate to my students both polarity and the consummate Philly dialect. Go Iggles!!

[@carsegamariluz]

Brilliant! I just wish I had found this a week ago, when my first biology test with this kind of things was, it is much clearer now! This is the best channel ever.

[@happysoul468]

Is this nicki minaj narrating...Thank you mam

[@TM-lf6os]

I don't get how there would be any dislikes. Great graphics and great, easy to understand video.

[@Melissaeui]

the information this video gives is timeless, thank you so much !

[@amiraboodi2075]

Ted-ed is brilliant. I love your simple yet scientific way of presentations. Thanks a lot. 😉🌹

[@triciakruse9191]

This is very well done! I love teaching with 21st century technology.

[@NusratJahan-vv7ww]

The animation was top-notch! Couldn't resist the urge to comment....

[@lscbd7654]

From this video do you know what the answer is for ( list water’s life-supporting properties) ?

[@KayteePhilly]

Wooder is awesome!

[@stephensbiologyethicsa9197]

This video marks so much important information . Thanks

[@Shan13131]

Wow! What an explanation! Water-tastic!

[@binbin6525]

this video is awesome. clear and simple explaination and good analogy used. Keep it up.

[@shaileshkumarsingh3113]

This video is fabulous the reason is that it doesn't only explain the concept of Polarity but it also explain it partical situations

[@SingSongSottoVoce]

THIS IS MY ECOLOGY TEACHER FROM SENIOR YEAR

[@ethancrossway4669]

U serious?

[@gavind343]

@@ethancrossway4669 she was my biology teacher

[@AlexasWorld20]

This is amazing! It helped me so much in my class!

[@xXXPrinceAlbertXXx]

I think I learn more from youtube education videos than I did my entire 4 years in highschool.

[@EricZuckerman1]

I don't agree that "hydrogen bond"s are chemical bonds. They are intermolecular forces and the difference is meaningful. Additionally, water would not make hydrogen bond IMF's with NaF. Instead, the ion-dipole IMF would form. Otherwise, nice job.

[@notpickybutstrict9484]

inter-molecular forces are chemical forces ya dumbfuck.

[@EricZuckerman1]

Sadly, you are just showing a bit of ignorance here. Chemical bonds hold atoms together to make molecules. Intermolecular forces hold molecules together to make the condensed phases (liquid and solid). Hydrogen bonding was mistaken as a chemical bond early in chemical history because they are stronger than most IMF's. But, there is a significant difference and I suggest you study the difference. BTW, what I am stating is not my opinion, but a matter of definition that all scientist agree upon.

[@hellohypo2009]

What a thoughtful reply to a witless worded troll. Such beauty is wasted on the weak and feeble minded, friend.

[@grapflavur]

"wuter you doing today?" "ah nothing, wuter you doing today?'

[@see2peeinc]

Great simple video on the polarity of water

[@dimensionless99]

It doesn't explain why the molecule is polar though. To do that, you have to explain the spatial relation of orbitals, as explained by quantum mechanics. Those classical explanations about the behavior of matter are nice and easy, but ultimately we're not offering the proper tools to really understand what's going on.

[@darkblade190]

Awesome. Already knew this stuff, but I love these videos.

[@MrWillisle]

I just knew that some day TED got to make this one. Kinda surprised it didn't come earlier.

[@bharathkumar7337]

every point in this video is gold ... 🙏🏻 although we are talking abt water .

[@malussimia4599]

That was just wonderful. Water is positively strange stuff!!!

[@AdityaSingh-et8lb]

The animation is damn good that I am not able to concentrate!!!

[@lscbd7654]

From this video do you know what the answer is for ( list water’s life-supporting properties) ?

[@scottseptember1992]

It's pretty clear to me. Maybe the only part that didn't make much sense was the explanation that H-forces made the solid state of water less dense than the liquid state. What about other liquids that also have hydrogen forces between their molecules? Are their solid states, due to them having hydrogen forces, also less dense than their liquid states?

[@elliemay9851]

Thank you for these helpful videos!! They really help you understand a bit better! :)

[@emmetscharp9563]

Good video, but an explination of the effect of temperature and why it changes the angle of the Hydrogen atoms to shift would really help.

[@keabetswemonei4282]

you are amazing Christina ...i appreciate it a lot

[@jbellon4]

Thankyou Christina!

[@鄭品聰銘豐]

So good the connections of Polar bonds.

[@khooboonhui1802]

This is really helpful, thanks

[@miskee11]

And to add to my previous reply: not all liquids do freeze from top to bottom. Water does it exactly for the very reason stated in the video; ice is less dense and thus floats. In reality, most liquids freeze from the bottom first, as they simply dense up as they freeze. Nonpolar liquids do have surface tension as you said, but it is considerably weaker and probably doesn't even support the weight of most insects -- I couldn't find any research material on that, though.

[@fyrestorm0474]

Excellent video!

[@Meem486]

that is amazing .. ididnt understand from there book and this video clear the vision

[@liberal0irony]

Way better than they explanation i used to give.

[@scitastic720]

Thnk u a lot...love the voice

[@xXXPrinceAlbertXXx]

I think it's a little bit of both. I did have some decent teachers, but I find that I learn things easier when I actively go out to learn on a voluntary basis.

[@hulick6910]

In some compounds, like bismuth, gallium, and silicon expand when freezing. In some pressures, graphite floats on liquid carbon.

[@miskee11]

Unequal sharing is pretty much a lack of balance or symmetry in charge as you refer to it. If a pair of atoms is shared 50/50 to 2 atoms, it's a nonpolar & covalent bond and an unequal share, e.g., 45/55, the electron pair is slightly closer to the electronegative atom and you have a polar bond. If the electrons go all the way to the other atom, you create a big electronegative difference causing an ionic bond and in both cases you have "lack of symmetry" (not 50/50) and it is an unequal share.

[@mikepict9011]

The ground temp is usually above freezing between a few centimeters and a few feet below ground. Heat gain from seasonal average/ geo decay .

[@deeneshsharma1833]

Give this man a medal (Y)

[@idahogreen2885]

that was frkn awesome christina:))

[@demianyutin8616]

that projector shutter effect thing is really annoying

[@KnakuanaRka]

Demian Yutin The awful nasal voiceover is even worse.

[@noodlesandwich497]

K1naku5ana3R1ka that’s my science teacher ur talking about

[@katsmokish388]

@@noodlesandwich497 lmfao

[@theenbgender]

Every time she said "wuter" I got mad like wAter waaaater

[@Gabo-wg3dv]

WOTA

[@davidschmidt6013]

Funny. As someone who reveres our language, every time people say "like"...

[@SamLeibowitz]

As a native Philadelphian I'm reporting this as a hate crime.

[@greatenemy2734]

@@davidschmidt6013 like, shut up

[@ghostmmam254]

Great Enemy calm down bud

[@yayayayay123-y3z]

Not in the world, but in certain subjects it can be viewed as such when compared to lesser bonds.

[@ZedMasterGames]

Thanks! I'm gnna ACE that Science test!

[@saltyruf7186]

7 years later, did you ace it?

[@ZedMasterGames]

@@saltyruf7186 100% but I forgot it all :(

[@NazHussein99]

This is amazing! Thank you!

[@farmcottage4320]

I understood it.Thanks😊💜

[@hannahwhite1453]

Thank you soooo much.. I cant even describe how much this helped me. I will definitely be subscribing

[@fikatrouvaille3670]

Thank you so much!

[@lscbd7654]

From this video do you know what the answer is for ( list water’s life-supporting properties) ?

[@BlighChannel]

I reccomend this to anyone studying AS Chemistry on the OCR Board

[@fandju111]

*Chemistry 101: still dont get it thoe*

[@MegaMGstudios]

Accent Tué mini magnets

[@sisajohn3342]

I'm still wondering why metal shrinks in cold tempeture and expands when heated, Mabe water is special 🤔

[@eljask]

@@sisajohn3342 water is a different breed :)

[@feriCrunch]

@@sisajohn3342 metal is solid; In solids, when it gets cold molecules' kinetic energy decreases and causes atoms to take up less space.

[@kalonjackson6]

5 years later

[@damindarathnayake2891]

wow it was very use full for kids

[@igorjosue8957]

wait, so water molecules have an "secondary bounding" keeping themselves together? thats cool to think

[@noracox6567]

strenth of the bahnds! wonderful worter!

[@Wonderbeast]

Ice also freezes from the top down cause its most dense at 4 degrees Celsius which means that any water colder can't sink below it.. meaning that it will fill up to all 4 degrees through and through and then start getting colder on top enough to freeze. Limnology came in handy, yo.

[@larryhammersley9410]

since water molecules are polar, the water in our body are either positive or negative. our brain contains water molecules as well, and that's either positive or negative as well. so don't think negative.

[@greeksyrian]

Didnt know Janice from friends also taught chemistry

[@aayushdhungana360]

Whaaa....wheree

[@stevenethan4638]

Wait a minute candy bars, you know candy bars, they usually come in a wrapper, just like you wrap a Christmas present and Christmas happens when it is cold, cold as in Alaska and in Alaska there are Polar Bears....polar.. Polar Bears... Po... Polarity. Yesss.....I understood now.

[@prateekluhadiya]

Steven Ethan was high when he watched it and wrote the comment

[@taliyahcato3633]

@@prateekluhadiya lmaooo

[@007MrYang]

Love the video! Keep 'em coming!

That is not what is described in the video; the "hydrogen bond" is *intermolecular*, a dipole-dipole bond. Google the IUPAC definition and inform yourself.

[@kaioz6699]

really helpful!

[@lscbd7654]

From this video do you know what the answer is for ( list water’s life-supporting properties) ?

[@dimensionless99]

Ultimately, yes, but the first half of the video spends some time discussing how atoms have valence electrons and how they form covalent bonds, and I felt like that discussion could have been better. For example, with the explanation given, it doesn't explain why water molecule is bent, and the H and O atoms don't line up on an axis, say like CO2.

[@andrewpod5693]

I never understood why somebody is whining. You have a great video with great animations, it's for free and still you complain about the accent.

[@chris7toronto]

Brilliant! Thanks!

[@anthonysalters8828]

something is wrong with the lesson link on the ted.com

[@sweatypaper2681]

Every time there is a click, my ears can't take it 🌵

[@axorvb]

What about anomalous expansion of water? The lake freezes from top down because water is less dense when it iis @4 than when it is @0 degrees.

[@ethanwarren8977]

and how long did it take me to learn this in high school? i can't help but think learning this way is just better.

[@jestersudz6085]

i love the way she says water

[@queerlang6611]

I feel like saying "more than their fair share" of electrons is misleading, the number of protons means that number of electrons is it's "fair share"

[@hagarmkj]

Amazing .. Love it

[@theoireland5970]

What are other polar molecules

[@austinhance415]

She’s my old bio teacher, also if people are wondering about water, it’s a Philly thing

[@noodlesandwich497]

Austin Hance she’s my bio teacher rn, gv?

[@BestFitSquareChannel]

wonderful!

[@locbui5388]

Wow, video very good . vietnam

[@eolgrillo]

i like this voice more than the modern ones

[@AnnieI3M]

What do you mean by "laws of bonding"? Are you referring to the covalent bond itself or the intermolecular hydrogen bonds? Either way, there is no reason for them to not apply in space... They are the result of mere attraction forces. If the planets, at a much bigger scale, gravitate and are attracted towards other bodies, why wouldn't molecules behave this way too? :)

[@rattrap1985]

Or freeze. It kinda depends on how far away it is from the nearest sun and/or heat source.

[@TadaGanIarracht]

Antimony, Bismuth, Gallium, Germanium, Silicon and Acetic acid become less dense in solid form... it's the tetrahedral shape. I think.

[@TheReligiousAtheists]

Is it 100% necessary to put a pun somewhere in a TedEd video?

[@ruki25]

I laughed my ass of when the kid walked into the water!

[@Dexteritye]

i heard hydrogen bond is the strongest bond in the world, is that true?

[@brunomachado894]

This comment is 7 years old, so I'm not even sure it's worth responding, but the answer is No. It is the strongest interaction between molecules, but it's weaker than all interaction between Atoms and Ions.

[@francisbaptistemusic]

they should teach high school exclusively with these kinds of videos. I would've learned and retained a great deal more knowledge, I think.

[@yurikolovsky]

why do hydrogen bonds hold water molecules further apart in frozen water than in liquid water?

[@vigneshmaharajan2235]

Where can I find a song like intro song of Ted-ed

[@nerdiconium1365]

1:40 That metaphor there is why we shouldn't fix the positive negative terminology

[@andrewzamora5257]

But how come the hydrogen and oxygen atoms don't arrange themselves in a straight line?

[@bedbeard333]

You know what's annoying? The projector skipping sound that the person put every time the screen changes graphics. Bad sound design in my opinion

[@happyage7694]

If so then how are we able to walk on ice?

[@NataliDali]

Only when the ice layer is thick enough, and not just one-molecule thin film.

[@notpickybutstrict9484]

so, if you have a molocule that has the exact same polarity could you use it instead of water.

[@Yomabo]

To do what?

[@notpickybutstrict9484]

Joep Bosma Mostly everything that water is required

[@Yomabo]

NotPickyButStrict alright, first of: moleculs are polair or they aren't. Second, ethanol is often used to do the same job as water.

[@gurralamohankumar5838]

Thnk u

[@minhakhan850]

Amazing👏👏👏

[@lscbd7654]

From this video do you know what the answer is for ( list water’s life-supporting properties) ?

[@danoffury]

i just felt my brain get smart :D

[@TadaGanIarracht]

? Electromagnetism = needs no medium... Gravity = needs no medium... Why would the "laws of bonding" whatever they're meant to be, not apply in space?