Anomalous Behaviour of Water | How Ice Supports Life on Earth | BYJU'S NOW WE KNOW

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  • Опубликовано: 15 окт 2024
  • Ice is far more important than it appears to be. "Ice is responsible for the existence of life on Earth.
    It is quite a unique substance because solids are generally denser than their liquid counterparts. So, they mostly sink if placed in their liquid form but ice, despite being a solid form of water, floats on it.
    That’s because ice is less dense than water. At molecular level, you will see these randomly moving H2O molecules in water,
    which, if cooled below 0 degrees, convert into ice and get locked in this beautiful cage-like structure.
    To understand how this cage forms, you can watch the supercooling video: • Secret to Freezing Wat...
    During cooling, as the temperature falls, the randomly moving H2O molecules slow down and come closer. As a result, the density of water increases. However, this happens only up to 4 degrees Celsius. If cooled below 4 degrees, it will start to expand. That’s because as the temperature dives below 4 degrees, water is nearing its freezing point, so its molecules try to arrange themselves in that cage-like manner. While doing so, they move apart, and it expands. Hence, water below 4 degrees is less dense and tends to float over warmer water.
    At 0 degrees and below, these molecules successfully form cage-like structures and water changes to ice. Ice molecules have large gaps between the cages, which makes it even less dense than cold water and ice floats over it.
    While most liquids contract and become denser, water expands and becomes less dense, if cooled below 4 degrees. This is what we call the anomalous expansion of water or anomalous behaviour of water.
    But what ice has to do with life on Earth?
    At sub-zero temperatures, you might think that a lake should completely freeze. If that happens, fish and other aquatic life will just freeze to death.
    But that doesn’t happen!
    Because as the temperature of water starts to fall
    below 4 degrees, its anomalous behaviour kicks in
    causing less dense colder water to float on the
    surface where it further cools down to form ice.
    Ice being less dense, floats and covers the water body like a blanket. It’s also a poor conductor of heat, so a thick layer of it insulates the
    underlying water from the frigid atmosphere, preventing it from freezing. So, the water underneath remains liquid and aquatic creatures happily survive beneath this icy layer.
    That's how ice is responsible for the existence of aquatic life.
    But not just aquatic, polar ice caps at the north and south poles are nothing but massive ice blocks floating over the water. They reflect most of the solar radiation into space and regulate
    Earth's temperature and help in reducing global warming. In their absence, Earth will become so hot that life won't be possible on it.
    That’s how life on Earth owes a great thanks to floating ice.
    #BYJUSNowweKnow #NowweKnow #BYJUS #BYJUSScience #IceResponsibleForLifeOnEarth
    #EarthLife #LifeOnEarth
    #OriginOfLifeOnEarth #FirstLifeOnEarthWas
    #EvolutionOfLifeOnEarth #Earth
    #IceOnEarth #WhyIsIceImportantToEarth
    #IsIceNecessaryForLife
    #WhatMakesLifeOnEarthPossible
    #WhatMakesLifePossibleOnPlanetEarth
    #AnomalousExpansionOfWater
    #StructureOfIce
    #DensityOfIce
    #WhatMakesWaterSoSpecial
    #WhyFishDontFreezeInWinter
    #IceIsLessDenseThanWater
    #HowLakesFreeze
    #HowWaterFreezes
    #IceFloatsOnWater
    #UsesOfIce

Комментарии • 75

  • @Rider63810
    @Rider63810 8 месяцев назад +26

    The anomalous expansion of water refers to its unique behavior when it's cooled below 4°C, where it actually expands instead of contracting like most other substances. This property is consistent regardless of altitude. However, at higher altitudes, the atmospheric pressure decreases, which affects the boiling and freezing points of water but doesn't change its anomalous expansion behavior.

  • @hibimtb
    @hibimtb Год назад +28

    when i tell you this was the only video that helped me understand what anomalous expansion of water was, i am being for real.

  • @thesoulenergyvibespositive7265
    @thesoulenergyvibespositive7265 Год назад +26

    U guys r taking the education and curiosity on another level

  • @alokendramandal
    @alokendramandal 2 года назад +192

    Byju's is the Apple of education.

  • @lakshitasartclass1486
    @lakshitasartclass1486 2 года назад +75

    At high altitude as there is low pressure water molecules will go more apart from each other so for analmous expansion we need to decrease temperature even more than normal conditions for water molecules to come closer to form ice

  • @CM_Moments
    @CM_Moments 2 года назад +25

    The fish did not freeze because as you explained the ice is less dense than the water and is poor conducter of heat so it rises upwards and reflects the heat that's why the temperature of the fish water below the ice remains warm
    So, fishes at places even cold than -2 degree Celsius des not die by freezeing in the cold water
    Thanks for explaining everything about it chetna mam
    I love Byju's it's my favourite classes 🤗🤗😊😊

  • @Navya-Gupta_20
    @Navya-Gupta_20 2 года назад +13

    I don't know that we can learn like this
    Proud of you
    I love byju's

  • @muhammadqaisarkhan1926
    @muhammadqaisarkhan1926 9 месяцев назад +3

    Miss, you explained it in a very different way, I don't have words to praise you. 👍

  • @mudasiralisamejo8808
    @mudasiralisamejo8808 2 года назад +19

    Imagine that you are at a particular higher altitude and you have wonder with you. How what you do is that you lower the temperature of water below 4 degree Celsius. As we know that at such higher altitudes the pressure is lower and the temperature is also low so, what would happen is that now the water needs more pressure to reach below 4. So now, water happens to be more denser than the water at surface exactly below that altitude.

  • @abiodunjohnson-nw5ph
    @abiodunjohnson-nw5ph 11 месяцев назад +5

    Anomalous expansion increases with altitude. This is because as you move higher, there're lesser air molecules which contributes to lesser atmospheric pressure. This means there's less force on the water molecules. Thus, they have more freedom to expand.😊

  • @KabirHRX
    @KabirHRX 2 года назад +12

    Ma'am I have a question:
    If oxygen already balanced due it's self bonding that is O2. Then why it reacts with other elements because it already achieve noble gas configuration that is O2. Similarly in case of Cl2. Plzz ma'am make a video on this problem!

  • @graceforever9100
    @graceforever9100 Год назад +2

    Byju's is the best app to learn world's best app to trust

  • @shaidalinsohtun7401
    @shaidalinsohtun7401 Год назад +1

    She makes the topics more and more interesting thank you miss

  • @aarushatulsinha3407
    @aarushatulsinha3407 Год назад +2

    Mam, with your explanation I understood very nicely.Thank you 😊😊

  • @rajeevmanoharkodela9794
    @rajeevmanoharkodela9794 Год назад

    The general dence of cold water remains unchanged until 4o C The density of water gradually increases as you cool it When you reach 4oC its density reaches a maximum The effect of this expansion of water is that the coldest water is always present on the surface Since water at 4oC is the heaviest this water settles on the bottom of the water body and the lightest the coldest layer are on the top layer So in the winter the top of water is always the first to freeze over ice and water both are bad conductors of hea this top layer of ice insulates the rest of the water body from the cold of the winter.
    Thanks mam for this amazing conceptual video 🤩🤩I eagerly wait for it and it's so cool👍🏻

  • @veenasharma3
    @veenasharma3 2 года назад +3

    Mam I have a question
    *"Science says that energy is neither be created and nor be destroyed only can be transferred from one body to another". Energy comes from where ⁉️⁉️⁉️

  • @Mohita381
    @Mohita381 2 года назад +3

    Very nice explanation chetna mam❣️❣️👌👌

  • @ranpalnagar5664
    @ranpalnagar5664 2 года назад +6

    I love byju's videos 📹 😍

  • @ashervuyomaphosa1173
    @ashervuyomaphosa1173 10 месяцев назад +1

    Just an example for the question, that's the reason why there is usually snow at the top of mountains, that's what I understand

  • @debakasubedi4944
    @debakasubedi4944 2 года назад +6

    Thanks for this knowledgeable video🇳🇵🇳🇵🇳🇵🇳🇵

  • @mohitsperspective9748
    @mohitsperspective9748 8 месяцев назад

    Thanks. A good explanation

  • @Khansahab-v6r
    @Khansahab-v6r 9 месяцев назад +1

    The figid layer at the surface of water at altitude will be of 2-3 degree celcius whereas at sea level it is of 0 degree celcius

  • @saifiqbalkhan8127
    @saifiqbalkhan8127 2 года назад +5

    how do you make such good videos 🤔

  • @RoziAmna
    @RoziAmna 10 месяцев назад +1

    Why water pipes burst in winters ?

  • @HornadySetiawan
    @HornadySetiawan 2 года назад +2

    In high altitude with lower atmospheric pressure, I guess water will boil at less than 100C and freeze at more than 0C. Correct me please if I'm wrong.

  • @mohdyousufmalla7323
    @mohdyousufmalla7323 2 года назад

    byju is really best application for students

  • @kalpanamondal7011
    @kalpanamondal7011 2 года назад +4

    One question to ask why there's space between water molecules in ice?

    • @byjusclasses
      @byjusclasses  2 года назад +8

      Due to the particular arrangement that arises due to H-bonding!!!.

  • @havanaohnana....941
    @havanaohnana....941 2 года назад +5

    I am your sincere student.....i am so glad and proud to see you here.God bless you... i pray for your longivity.Thanks a lot! :)

    • @byjusclasses
      @byjusclasses  2 года назад +2

      It's my pleasure. Thanks for your love and support :)

  • @pavithl8172
    @pavithl8172 2 года назад +2

    Thank you madam

  • @shivammirge3749
    @shivammirge3749 Год назад +3

    Thank you ma'am for this amazing explanation.😇👍

  • @preetithakur7248
    @preetithakur7248 2 года назад +2

    I am your sincere student Vidhi.
    Why is there no gravity in space?

    • @byjusclasses
      @byjusclasses  2 года назад +1

      Definitely this i something interesting and we will make a video about this :)

  • @saishbendkhaleart.1724
    @saishbendkhaleart.1724 9 месяцев назад

    Nice teaching 👍

  • @kavithachandru7987
    @kavithachandru7987 10 месяцев назад +2

    Thank you iam a topper now😊❤😊❤😊❤😊❤🎉🎉🎉🎉

  • @Khansahab-v6r
    @Khansahab-v6r 9 месяцев назад +1

    There will not be special chage in it the only thing that happen it that the frozen surface layer of water will frigid at little bit higher temperature 🌡️ than at the sea level. else it nothing change will seem.

  • @preetithakur7248
    @preetithakur7248 2 года назад +2

    I am your sincere student Vidhi. Where does the sound of Thunder come from?

    • @byjusclasses
      @byjusclasses  2 года назад +2

      Interesting!! Let's see what others have to say about this :)

  • @shrekwazowski69
    @shrekwazowski69 2 года назад +1

    Very Helpful Videos

  • @beauti_unnao_0035
    @beauti_unnao_0035 2 года назад +1

    It really fantastic

  • @piparts3991
    @piparts3991 2 года назад +1

    Mam we want to know about that everything is made up of atoms but why and how their states are different like solid, liquid, gas and plasma... Please Explain us...

  • @Batman-Avanish
    @Batman-Avanish Год назад +1

    At higher altitudes, te temperature is much lower. It must be lesser than 0 C. So anomalous expansion probably won't take place...

  • @Khansahab-v6r
    @Khansahab-v6r 9 месяцев назад +1

    Anamolous behavior can be perceived on altitude before the sea level with a temperature difference of 2C - 3C

  • @RobloxSoYouBeHapppy
    @RobloxSoYouBeHapppy Год назад

    Wow this is a good video 🎉

  • @babasahebminde1704
    @babasahebminde1704 2 года назад +1

    Cool

  • @saikatsarkar449
    @saikatsarkar449 2 года назад

    Thanks a lot for the information
    Keep sharing such videos

  • @akhilpatel9679
    @akhilpatel9679 2 года назад +6

    I don't know the name of mam but she explains really fantastic
    💜💜

  • @bhatronak7604
    @bhatronak7604 2 года назад +1

    👍 awesome

  • @rittickgour3094
    @rittickgour3094 2 года назад

    Lovely vedio

  • @hardeyinanikirasoi5635
    @hardeyinanikirasoi5635 2 года назад

    Beautiful video

  • @madhammunirao9064
    @madhammunirao9064 2 года назад

    Why do we use only crude oil products as fuel in vehicles please answer my question mam

  • @shaikhbakhas5105
    @shaikhbakhas5105 2 года назад

    Pressure is lower and also the temperature is lower at high altitude and water needs enough pressure to be below 4°C and water is now appearing to be much denser than water at surface exactly below that altitude

  • @bhabatoshbehera3254
    @bhabatoshbehera3254 2 года назад

    Nice explanation

  • @keirfjfhxailamendxs1814
    @keirfjfhxailamendxs1814 2 года назад +2

    Thankyou

  • @aashreykumar9886
    @aashreykumar9886 2 года назад

    Awesome byjus ❤️❤️

  • @srikanthkondoji6660
    @srikanthkondoji6660 2 года назад

    We want to know more

  • @natayamaiomo9092
    @natayamaiomo9092 8 месяцев назад

    Why does water behave abnormal what causes ot

  • @monu5221
    @monu5221 2 года назад +1

    The most common question_why ice floats on water?

  • @aps6307
    @aps6307 2 года назад

    Wow!!

  • @legendarylakshay4164
    @legendarylakshay4164 2 года назад

    Cooll

  • @abincris9389
    @abincris9389 2 года назад

    i love ice

  • @vandanasoni4242
    @vandanasoni4242 2 года назад

    Earth got it's ice caps after life started on Earth

  • @Mohammedrizwan-tm6qx
    @Mohammedrizwan-tm6qx Год назад

    Anomalous property of water

  • @mail2rosein
    @mail2rosein 2 года назад

    Yes man

  • @T_GungunTagore
    @T_GungunTagore 2 года назад +13

    The general dence of cold water remains unchanged until 4o C The density of water gradually increases as you cool it When you reach 4oC its density reaches a maximum The effect of this expansion of water is that the coldest water is always present on the surface Since water at 4oC is the heaviest this water settles on the bottom of the water body and the lightest the coldest layer are on the top layer So in the winter the top of water is always the first to freeze over ice and water both are bad conductors of hea this top layer of ice insulates the rest of the water body from the cold of the winter.
    Thanks mam for this amazing conceptual video 🤩🤩I eagerly wait for it and it's so cool👍🏻👍🏻

  • @RoziAmna
    @RoziAmna 10 месяцев назад +1

    Why water pipes burst in winters ?