Shadowing-Übung: Rock Candy! - Englisch Sprechen Lernen mit Video
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Have you ever wanted to make your own rock candy?
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Well, today I am going to teach you how with my rock candy science experiment.
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Hi everyone, I'm Emily Calandrelli, MIT engineer and host of Emily's Flunder Lab.
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And on my channel, we learn about all things space and science.
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So grab your sugar and get ready for some sweet science.
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Today I'm going to teach
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you how to make colorful rock candy sticks using science here's
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what you need rock candy sticks one cup of water three
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cups of white granulated sugar plus a little extra to sprinkle
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on your rock candy sticks a few different glasses some clothes pins
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and some food coloring the first thing
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you want to do is you want to get the bottom third of your rock candy sticks wet
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you can do this by running it under water in the sink
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i'm just going to do it like this here
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and then after you do
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that for a few seconds lay them out on a plate just like that
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and we are going to sprinkle some sugar on top of them
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you just want to completely coat your rock candy sticks get
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as much sugar on there as possible might be a little overkill
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but that's okay just go ahead
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and roll it around in the sugar set your rock candy
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sticks aside to dry for at least an hour ideally overnight once your candy sticks are completely dry
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you are ready to make your saturated solution of sugar here's how you do
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that add one cup of water to a pot
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and then add three cups of white granulated sugar one stir
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that in so that it dissolves
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and as we heat this up this will dissolve even better there's two stir
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that in what we are doing here is we are saturating the solution meaning
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we're adding as much sugar as humanly possible to this water at this temperature
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it will not be able to even
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if it wanted to dissolve more sugar stir
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that in now put your heat on high what we want to do is bring our solution to a boil
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and allow it to boil for two minutes.
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Now that your solution is boiling, give it a good mix.
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Make sure all of that sugar has dissolved.
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And after that two minute timer is up, go ahead and turn your soap top off.
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And we're going to let this cool for about 15 minutes before we transfer it to our glasses.
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As your solution cools, we can prepare our glasses with our rot candy sticks.
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So go ahead and we want it to look like this.
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We want it to be suspended in the glass not touching the bottom
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and not touching the sides and clothespins work really well for this.
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For bigger glasses I'll show you how to do it.
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So we have a rock candy stick that has dried overnight.
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One clothespin here I'm going to measure make sure it's not touching the bottom there.
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I'm going to do one of these and then a second one right here and place it right in the center there.
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So now that they are all prepared
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and they're not touching the bottom they're not touching the sides go ahead
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and take them out
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because we are going to put our sugar solution in the glasses one thing
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you can do to prepare your glasses for the still pretty
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hot solution is to run them under hot water to make sure
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that you're not going to break your glasses by pouring in the hot sugar solution
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because we were measuring our rock candy sticks in here just clean them out make sure
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there's no more sugar inside your glasses and just like
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that you are ready to pour in your saturated sugar solution
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so very carefully
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because it'll still be a little hot pour it into as many glasses as you like careful with the glasses
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because they will be hot
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and depending on the size of your glasses you may have more glasses
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you may have less now for the fun part we are going to make this colorful I'm going to use purple,
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stir it with a spoon.
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Oh, beautiful.
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Look at that.
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Stir it up. And then finally, blue.
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Now we are ready to put in our rock candy sticks into the solution
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and I recommend putting the glasses where you're going to leave them for the next seven days
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because we ideally you would leave these sitting letting them crystallize for a week.
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The science experiment takes patience but the end result.
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It's pretty amazing.
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So go ahead, once they're there where you want them, carefully, slowly place your rock candy stick in the solution.
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You want to cover up as much of the stick as possible.
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I have found that long skinny glasses work really well for this because you're not using as much solution, but you're covering that entire rock stick.
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Our beautiful blue one.
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So now we just wait.
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And what's going to happen as we wait over the next few days?
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Well, crystals are going to start building on your rock candy sticks because the solution is going to cool.
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Why does that matter?
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Well, hot sugar solution can hold more sugar than cold sugar solution.
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And as the solution cools, that sugar is going to want to jump out of the solution to undissolve from the solution.
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That's why we covered our rock candy sticks with sugar, because that sugar that wants to undissolve, it wants to hold on to something.
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And that little something was our seed crystals on our rot candy sticks.
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So day by day, you will see more crystals building on your sticks.
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And after the first day, they're a little bit small, but be patient because they get bigger and bigger and bigger.
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And at the end of a week, you'll have a very beautiful rot candy crystal.
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These were some rot candy crystals I prepared ahead of time.
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And after a few days of waiting, it'll look like this.
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You'll notice some crystals growing on your rock candy stick,
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but you'll also notice some sugar crystals on the bottom of the glass and right on the surface.
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So to get your rock candy out, you want to take your clothespin
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and just kind of break the surface of the sugar just like
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that because we just want to be able to pull our stick out easily.
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once you've done that wiggle your candy stick around
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and take it out and you'll notice it's still dripping
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that sugar liquid there get your clothespin bring it to another glass
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and let it drip for just like 10 minutes that's all you need
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and then once
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that happens you'll be able to have a delicious rock candy crystal this one has been waiting in
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that solution for about three days
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so you can tell it's not very big that's why patience is key with this experiment
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this one has only been in there for about two days so it's quite small and a word to the wise
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use rot candy sticks instead of skewers we use skewers here and you'll notice some variability
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because they have a hard time holding on to the sugar
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when we coated our sticks with sugar at the start for our seed crystals.
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Some of them stayed on.
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Some of them fell off.
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Rot candy sticks are much better at this.
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So when you're shopping, get rot candy sticks.
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Our sugar solution became super saturated as it cooled down and created all of these beautiful crystals.
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This one was waiting for two days.
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This one was three days.
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These were all four days.
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And this big guy was eight days.
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You can see it mostly collected at the top here
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because again we used a skewer and all of those seed crystals fell off of the bottom.
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So none of the crystals grew down here, but they very much grew up there, creating quite the unique crystal.
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Very cool.
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These sugar crystals have these beautiful geometric shapes because crystals occur when atoms arrange themselves in highly organized repeating patterns,
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creating these beautiful geometric shapes thank you for making rock candy with me today
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if you like this one be sure to check out my best -selling stay curious
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and keep exploring book series for 99 more science experiments i'm emily calendrelli subscribe for all things science
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and space and remember stay curious and keep exploring i'll see you next time
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Wortschatz und Sprechhinweise zu dieser Lektion
Diese Wörter kommen am häufigsten vor: candy, sugar, stick, solution, rock. Dieses Video enthält 121 Sätze und 1436 Wörter zum Nachsprechen. Der gesprochene Teil dauert 8:52. Der Sprecher spricht in natürlichem Tempo, etwa 162 Wörter pro Minute, ähnlich wie im Alltagsgespräch. 85 % der Wörter gehören zu den 3.000 häufigsten im Englischen; den Rest solltest du dir vor dem Üben ansehen.
Wichtiger Wortschatz in diesem Video
15 lernenswerte Wörter aus dem Video, mit Aussprache und Bedeutung:
| Wort | Aussprache | Bedeutung |
|---|---|---|
| candy Substantiv | /ˈkæn.di/ | Süßigkeit, Konfekt |
| crystal Substantiv | /ˈkɹɪstəl/ | Kristall |
| stir Verb | /stɝ/ | rühren |
| experiment Substantiv | /ɪkˈspɛɹ.ə.mənt/ | Experiment, Versuch |
| pour Verb | /poɹ/ | gießen, schütten |
| boil Verb | /bɔɪ(ə)l/ | sieden |
| saturated Adjektiv | gesättigt, saturiert | |
| carefully Adverb | /ˈkɛɹf(ə)li/ | vorsichtig |
| curious Adjektiv | /ˈkjʊɹ.i.əs/ | neugierig |
| coat Substantiv | /ˈkoʊ̯t/ | Mantel |
| explore Verb | /ɪkˈsploɹ/ | erforschen |
| patience Substantiv | /ˈpeɪ̯.ʃəns/ | Geduld |
| overnight Adverb | /əʊvə(ɹ)ˈnaɪt/ | über Nacht |
| colorful Adjektiv | /ˈkʌl.əɹ.fl̩/ | bunt, kunterbunt |
| ideally Adverb | /aɪˈdi.ə.li/ | idealerweise |
Phrasal Verbs, die du hören wirst
| Wort | Aussprache | Bedeutung |
|---|---|---|
| go ahead Verb | /ˌɡoʊ əˈhɛd/ | vorausgehen |
| check out Verb | überprüfen | |
| cool down Verb | /kuːl ˈdaʊn/ | sich abkühlen, abkühlen |
| cover up Verb | vertuschen | |
| grow up Verb | aufwachsen, erwachsen werden | |
| stick out Verb | abstehen, herausragen |
Grammatik in diesem Video
Die Strukturen, die der Sprecher am häufigsten verwendet, mit den genauen Worten aus dem Video:
| Struktur | Im Video |
|---|---|
| Present Perfect have/has + Partizip Perfekt – eine vergangene Handlung, die jetzt noch wichtig ist | Have you ever wanted · has dissolved · has dried |
| Möglichkeit mit „might / may“ might/may + Verb – etwas ist möglich, aber nicht sicher | might be · may have |
| Past Continuous was/were + -ing – eine Handlung, die zu einem Zeitpunkt in der Vergangenheit im Gange war | were measuring · was waiting |
| Verb + -ing enjoy, keep, stop … + -ing – Verben, auf die die -ing-Form folgt | keep exploring |
Aussprache, auf die du achten solltest
Der Sprecher verwendet 29 Kurzformen und abgeschwächte Formen, zum Beispiel I'm, you'll, you're. Sprich sie in der kurzen Form, so wie du sie hörst.
- Die Laute „sh“ und „zh“: patience /ˈpeɪ̯.ʃəns/, delicious /dɪˈlɪ.ʃəs/
- Lange Wörter – auf die Betonung achten: experiment /ɪkˈspɛɹ.ə.mənt/, ideally /aɪˈdi.ə.li/, geometric /ˌd͡ʒiː.əʊˈmɛt.ɹɪk/, variability /ˌvæɹ.i.əˈbɪl.ə.ti/
Laute, die Deutschsprachigen schwerfallen:
- /w/ — mit runden Lippen, nicht wie das deutsche „w“ (/v/): liquid /ˈlɪk.wɪd/, wiggle /ˈwɪɡəl/
- Stimmhafter Auslaut — /b/, /d/, /g/, /z/, /v/ am Wortende nicht verhärten: liquid /ˈlɪk.wɪd/, depend /dɪˈpɛnd/, subscribe /səbˈskɹaɪb/, arrange /əˈɹeɪnd͡ʒ/, organize /ˈɔɹɡənaɪz/
- /æ/ — offener als „ä“: candy /ˈkæn.di/, atom /ˈætəm/, granulate /ˈɡɹæn.jul.eɪt/, variability /ˌvæɹ.i.əˈbɪl.ə.ti/
So übst du mit diesem Video
- Höre dir das ganze Video einmal an, ohne zu sprechen, und notiere die Wörter, die du nicht kennst.
- Beginne mit 0,75-facher Geschwindigkeit, sprich Satz für Satz nach und wechsle zur normalen Geschwindigkeit, sobald es leichtfällt.
- Nimm dich auf und vergleiche mit dem Original; achte dabei auf Wörter wie candy, crystal, stir.
Was ist die Shadowing-Technik?
Shadowing ist eine wissenschaftlich fundierte Sprachlerntechnik, die ursprünglich für die professionelle Dolmetscherausbildung entwickelt und durch den Polyglotten Dr. Alexander Arguelles populär gemacht wurde. Die Methode ist einfach aber wirkungsvoll: Du hörst englisches Audio von Muttersprachlern und wiederholst es sofort laut — wie ein Schatten, der dem Sprecher mit nur 1–2 Sekunden Verzögerung folgt. Anders als passives Hören oder Grammatikübungen zwingt Shadowing dein Gehirn und deine Mundmuskulatur, gleichzeitig echte Sprachmuster zu verarbeiten und zu reproduzieren. Studien zeigen, dass es Aussprachegenauigkeit, Intonation, Rhythmus, verbundene Sprache, Hörverständnis und Sprechflüssigkeit signifikant verbessert — was es zu einer der effektivsten Methoden für die IELTS Speaking-Vorbereitung und reale englische Kommunikation macht.