Why does water expand when it freezes? - Naked Science Scrapbook
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- Опубликовано: 19 июн 2024
- Why does ice float in the cool summer drink of your choice? And why don't ponds and lakes freeze from the bottom up, killing all the fish? Find out with the latest Naked Science Scrapbook, where we'll see that it's all down to the weird and wonderful water molecules...More videos and podcasts from www.thenakedscientists.com
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i almost cried at how cute those two fish looked in their scarf and hat
And when they were pushed out lmao '-'
Simp
🙄 you'll be the first to die in a zombie apocalypse
Bruh
Hey Danilo! Basically, the water molecules form an "open lattice" structure when freezing as it's the easiest/most stable structure to form. In ice, each water molecule is bonded to four others, essentially forcing them a particular distance from each other. When ice melts, these bonds weaken and break, so the "lattice" structure collapses inwards, a bit like crumpling a paper box.
Hope it helps ;-)
She explained why. Its because the molecules are attracted to each other in such a way that when they cool down enough to form a solid, they form in a very particular and organized type of structure. That structure takes up more room than then when those same molecules are all loose - so small amount of water creates a larger structure. Like a pile of bricks make a building that is larger than the pile.
helped with homework!
For people who are saying that this "doesn't explain anything": Yes, it does. But in only 2:30, you're only going to get a sort of 5th grade overall outline of what's going on, not an in-depth, all-bases-covered detailed analysis of every aspect of the mechanisms. If that were the case, the video would probably be at least 30 minutes long.
I came out of this knowing more than when I came in, so, in that respect, I'm satisfied.
JW3HH
Look at my comment, I think I explained in a paragraph.
It's really good. ..Amazing drawing . Helped me a lot THANKS! !
THANK YOU SO MUCH for this video! It really helped me with my chemistry project, and I actually understood what I had to write about! You are a life-saver!!!
Thank you for succinctly explaining this for me.
Beautifully explained! Loved it so much!!!
This is great! Totally helped me since I'm a visual learner. Thanks!
i came here disappointed that there wasn't any scientists in the nude
That's an um..... Intresting username....
Thank you! This video helped a lot for my science project! Also amazing drawings!
Thank you for explaining more thoroughly,
This is really helpful, very well done, thank you!
These doodles are so well done!
That was pretty amazing.
Thank You!
I like how these are helpful but dang you're using a lot of papers..... but thank you for the helpful content!
So my question was: why are water molecules distant when frozen... Answer from what I understand is: the Hydrogen atom in one molecule is attracted with an oxygen atom in another molecule But is repelled by hydrogen atoms in other nearby molecules, thereby making this repeating pattern of attraction and repel throughout the whole water, a balance of attraction and repel is formed. Key for the answer is hydrogen bonding. Plus since the molecules are slow moving in cold tempertures, they don't posess momentum enough to tip their balance much aka so frozen solid... (I think that part) @NakedScientists am I correct? Thanks for the vid!
Thanks for this pretty amazing video!!
subscribing right now
You explained why ice contracts when it melts into water, but not why it expands when frozen.....
You have a brilliant narrating voice. Thanks
Because as you know, the water molecules speed up when heated and slow down when cooled. While the molecules get slower, the hydrogen bonds can form and thus creating a lattice that "pushes" the molecules away from each other. If the water speeds up again, aka becoming liquid, the hydrogen bonds break and the molecules are packed more closely together, thus being more dense than the larger ice state.
Sources:
This video
Excellent explanation.
Great help for homework. Thanks
i love this video, and the awesome drawings she made!
plz tell me some question
Q. No. 1 which centigrade water is most suitable for swimming?
Q.No. 2 is upthrust force help for easy swimming because cold water more dense?
Q.No.3. is hot water more dense or cold??
Q.No.4 if cold is more dense so is it easy to swim because cold have more upthrust force and upthrust mean you float more less drowning threat?
Amazing drawing...this is underated
idk why but I love these :)
In general terms it explains that the bonds in ice don't change length because they last longer and therefore hold at a more constant distance, whereas the liquid form constantly reforms them, making it so that the atoms are held at the same or less of a distance from one another than with ice.
i love this so much!!!
It doesn't. Air bubbles form when water freezes into ice. It is the air bubbles that make it take up more space. Otherwise it's identical.
Why do the water molecules for a lattice when colder than 4 degrees?
Are there any other material has the same character?
What happens if we cool ice below 0℃. Will the volume of ice decrease or increase?
These are freakin great
Have you really frozen it outside or by technology just a simple question
Well done.
in a 8 oz bottle of water. when it is frozen it expands. When it melts do you have more then 8oz or exactly 8oz? If more explain why ?
nice drawing and good video
I loved it!
this is excelent!
My dumbazk searched "why ice expands when frozen
nice video !
yeah... but why 4°C? Why does it flip its density before actually going solid?
If you flash froze water, preventing hydrogen atoms from expanding would it make ice more dense?
11 years later here I am. Thanks :) them damn hydrogen bonds.
so useful and funny :D
it makes me get it so well that I get As or Ms
Thank you Nathaniel. That does help a bit. (The video, as Danilo points out, does NOTHING to explain this.)
But WHY is that the most stable structure to form at that temperature? Why isn't that true of liquid water?
Nice Art
Today, I saw the faucet from outside it was bend and I knew its gonna burst due to water expanding, luckily it didn't burst only it pushed the faucet!
show change in volume in parentage ????
why don't these get more views?
Because it's obvious.
solid crystal stucture bonding geometry vs fluidility
Loved this. Great, fun explanation!
Would all the water in the pond freeze eventually?
Because a drink does.
i couldn't concentrate on what she was saying, cos i was too distracted by the awesome illustrations the artist was doing =.=
Why does ice expand again?
I can't be the only one unconformably that she made the oxygen atom red and the hydrogen blue
I concur
So let's say I have a machine that can cool the bottom of a tub of water only, one degree per second, start at 35°, one second later it drops to 34 gets colder and denser, one second later drops to 33 gets colder and denser, one second later drops to 32 gets colder and all of a sudden it becomes less dense than every degree before it. How? How can the law of physics saying "the colder, the denser" be overruled?
It didn't explain why it expands but that it does expands and what happens!
Interesting but not sufficient
That was umm....glib?
I still don't get it?
Help me someone :)
Bad news for the polar bears, too. :)
water is a weird thing. Can anyone explain why water also expands when heated? Cuz it seems water expands when heated and freezes?
I keep on accidentally breaking my bottles because of these..
I knew this, yet i wanted to get my water cold faster..
Instead, i forgot to take it out.. and it break..
I've broken 3 bottles because i forgot to take it out 😢
Bro that’s not what I wanted
Freezing water is cool, but have you heard about Dota2?
Wait u can’t compare something solid going into a molten solution of itself and not compare ice/water w those same traits. Like the temp of both the solid iron and the ice vs the temp of molten iron and boiling water not room temp water
yeah that's cool and all but WHY does it actually expand
The first fish looks a lot like the logo of wechat
How can hydrogen atoms bond if they are of the same charge?
Basic answer; God wanted it this way, in order to keep nature work the way it does.
this is an explanation not a description!!!!
thanks for giving the best clearance to my huge doubt whoul'd you like me to subscribe your channel
you'd think that a solid would be more dense than a liquid *because* it doesn't jiggle as much and push each other apart. god why is the world so annoyingly confusing
Yaaay, saved the fish!
Haha thanks. I have no idea why I asked that... plus, the question doesn't even make sense as English, it's missing a word lol.
This seems to be a kind of non-explanation explanation. The molecules are father apart when frozen, so it's less dense in a solid state. That's obvious isn't it? You're just restating the problem. But that doesn't explain why these molecules do it and others don't. And WHY are the molecules held father apart when it gets colder?
LEFT HANDER!!!!! WOOOOOOOO!!!!!!
Luck has nothing to do with it
This is wrong. You completely failed to describe the mechanism by which water is less dense. And you failed to explain why it simultaneously gets structurally harder. You don't understand the water molecule.
she did not elaborate, but she did tell the explanation
So, why is ice less dense than liquid water? You literally have not explained it.. All you said is that when water is frozen, there are "holes" in the O-H bond... But the question is, what has created those "holes" in the bond between O-H? That was never answered...
Energetics - meaning the most energetically favourable configuration for the molecules - is what dictates their relative positions and determines the packing density (how many molecules fit into a certain volume) for the ice crystal lattice.
What happen to naked scientist 😭😭😭😭😭😭😭🩷😭😭😭😭😭😭😭
As a year 12 chemistry student I cringed, when she drew the watermolecules... that's not how you draw them!!
If my class saw this hi 👋 it’s me
The naked scientist -_-
If u know what I mean
glass bottle try it
alliminun can soda beer it pop
u sure it sealed full bottle n expans air tight 2 fuck the plastic mould outside fripping wet metal can too
that video was shit but helped me alot
Hgshsjanv shanakag
haha love the little faces. the H's look like bowties :)
Mmm
*Old comment system* ;n;
Naked Scientist sounds like a porn name
I couldn't help but notice how much paper you waste.
That's very helpful. But the video did not explain that.
Not. At. All.
Nice production. Horrible content.
The video doesn't answer the question, it just says "Hydrogen bonds! Spaces!" and then moves on to talk about fish.
She explained that when water gains heat energy the molecules are more closely bonded together, and when it loses heat energy the molecules are less closely bonded together, making it less dense than liquid water, and therefore allowing it to float in liquid water.
She talked about how molecules expanded and so it expands.
I agree with you