쉐도잉 연습: Identifying Chemical Properties - 영상으로 영어 말하기 배우기

Hi everyone.

Today, we're going to do problems that involve us identifying chemical properties.

Let's take a look at the example problem we have below.

identify the chemical properties below.

So we have to take a look at all the properties we have here and see which ones are chemical properties.

Before we go on to do that, let's think about what chemical properties are.

Remember, chemical properties are things that we can only observe

during a chemical reaction so a change or an attempt to change the chemical composition of a substance.

so here Toxicity toxicity has to do with how how bad something is for you.

So toxicity, how does it change the chemical composition to make something Worse, let's say, for your body.

so toxicity would be an example of a chemical property because we could only observe it through a change

and how in and effects a chemical reaction.

So something in your body, your body is run with chemical reactions, and

If something is toxic to those chemical reactions or a drug is toxic to those chemical reaction it's because it

changed or messed with the chemical reaction.

So that must mean it is a chemical property.

So, flammability is also an example.

of a physical property of a chemical property, sorry.

Chemical property, that just means Can't it.

be observed without changing the chemical composition of something?

No, it can't.

We have to burn something to see if it if it changes.

And by doing that, we're doing a chemical reaction.

conductivity we could see if something transfers electricity or heat without changing the chemical composition.

So that must mean C. is out.

Viscosity means how thick something is or how hard it is to get through it.

Let's say if you try to put your hand through water, it goes through pretty easily.

But if you try to put your hand through water, syrup it wouldn't go through as easily and so this is also an example

of something that we don't need to observe using a chemical reaction.

D is out of there.

Now, E, radioactivity, is tricky.

it's something that involves sending out radiation.

But this only happens through chemical processes and we can't observe it or measure it,

without it changing the chemical chemical properties, the chemical composition of a substance.

So, that must mean it's also a chemical property,

because again, chemical properties only can be observed if something changes about the chemical composition.

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쉐도잉이란? 영어 실력을 빠르게 키우는 과학적 방법

쉐도잉(Shadowing)은 원래 전문 통역사 훈련을 위해 개발된 언어 학습 기법으로, 다언어 학자인 Dr. Alexander Arguelles에 의해 대중화된 방법입니다. 핵심 원리는 간단하지만 매우 강력합니다: 원어민의 영어를 들으면서 1~2초의 짧은 지연으로 즉시 소리 내어 따라 말하는 것——마치 '그림자(shadow)'처럼 화자를 따라가는 것입니다. 문법 공부나 수동적인 청취와 달리, 쉐도잉은 뇌와 입 근육이 동시에 실시간으로 영어를 처리하고 재현하도록 훈련합니다. 연구에 따르면 이 방법은 발음 정확도, 억양, 리듬, 연음, 청취력, 말하기 유창성을 크게 향상시킵니다. IELTS 스피킹 준비와 자연스러운 영어 소통을 원하는 분들에게 특히 효과적입니다.

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