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  • 00:00

    Hi, I'm Eddie. I'm a formal communicator here in At Bristol

  • 00:04

    In our water cycle workshop we talk about 'Supercooled Water'

  • 00:08

    I've got a demo here for you that's great to try at home.

  • 00:11

    So, you may notice on those cold winter evenings people place salt

  • 00:15

    out on the streets and pavements, because salty water can go well below zero degrees

  • 00:20

    and remain liquid it freezes.

  • 00:23

    We're going to try and get a bottle of fresh water to get well below zero degrees C

  • 00:28

    but still remain a liquid.

  • 00:30

    For your super cooled water demo

  • 00:32

    you need lots and lots of crushed ice,

  • 00:37

    a small bottle of water,

  • 00:40

    a beaker with round about 100ml of tapwater

  • 00:44

    plenty of table salt,

  • 00:47

    teaspoon, and a metal cylinder to place all of your ingredients inside.

  • 00:52

    First thing I'm going to do is to pour plenty of crushed ice

  • 00:57

    into the bottom of my metal cylinder then

  • 01:00

    I need five teaspoons salt to sprinkle around

  • 01:07

    I'm going to now place my small water bottle inside

  • 01:10

    Around that water bottle now i need to pack in

  • 01:13

    as much ice as possible.

  • 01:16

    Now, another 5 spoons of salt

  • 01:22

    Next, i'm going to take 100ml of water

  • 01:26

    and add 5 teaspoons of salt to this

  • 01:29


  • 01:33

    Stir the mixture around

  • 01:35

    Now i'm going to pour this salty water all around the ice

  • 01:38

    around my bottle

  • 01:39

    Now, if you've got any room

  • 01:41

    add some more ice on top

  • 01:44

    What we do now is just sit and wait for a good 30 minutes

  • 01:48

    and then our supercooled water should be ready

  • 01:51

    The reason why i can get a bottle of fresh water below zero degrees without freezing

  • 01:56

    is because in our bottled water, we have no

  • 01:59

    nucleation points. A nucleation point is simply

  • 02:03

    any impurities inside that bottle of water which is going to allow

  • 02:07

    ice crystals to form around it. Now when I have my bottle of fresh water that is

  • 02:12

    liquid but below zero degrees, if i cause a disturbance

  • 02:16

    like pouring that water over an ice cube, I'm going to create many nucleation sites

  • 02:20

    and that liquid will turn to ice instantly.

  • 02:24

    it's been about 30 minutes now, so let's see if our super cooled water

  • 02:28

    is ready to make some instant ice

  • 02:56

    So there you go. Instant ice, fantastic experiment.

  • 03:00

    Why don't you try at home?

All

The example sentences of NUCLEATION in videos (2 in total of 3)

Understanding Metals English (GB)
if preposition or subordinating conjunction a determiner metal noun, singular or mass is verb, 3rd person singular present cooled verb, past participle very adverb rapidly adverb , nucleation proper noun, singular occurs verb, 3rd person singular present at preposition or subordinating conjunction more adjective, comparative locations noun, plural and coordinating conjunction the determiner crystals noun, plural
How to make instant ice | Do Try This At Home! | We The Curious English (GB)
like preposition or subordinating conjunction pouring verb, gerund or present participle that determiner water noun, singular or mass over preposition or subordinating conjunction an determiner ice noun, singular or mass cube noun, singular or mass , i personal pronoun 'm verb, non-3rd person singular present going verb, gerund or present participle to to create verb, base form many adjective nucleation proper noun, singular sites noun, plural

Definition and meaning of NUCLEATION

What does "nucleation mean?"
nucleation

noun
Bringing together into a nucleus.