중2 비상 김진완 3과 본문 변형문제

In ____ movies, amazing things are possible.

But are they actually possible in real ____?

In the animation, Rapunzel must lower her ____ hair to let people in her tower.

But could human hair really hold up a ____?

Surprisingly, yes! A single ____ can hold up 100g and an average head has about 120,000 hairs.

All those hairs ____ hold up a couple of elephants!

With her hair, Rapunzel has the ability to ____ up a person.

But she should wrap her hair around something strong and ____.

If she doesn’t, she will get a very sore ____.

In the animation, monsters scare children to get energy ____ their screams.

Amazingly, their city is ____ by this sound!

But could we ____ produce electricity to light up a city from sound?

____, sound can be changed into electricity.

But it would not be ____ in our everyday activities because the amount is too small.

For example, the sound from a car ____ only produces 50mv.

That is only 1/4400 of the average ____ of electricity in our homes.

So, we would need an ____ amount of screams to light up an entire city.

The house is lifted and flown by thousands of balloons in the ____.

Could that actually ____?

Let’s say that a house ____ about 50,000kg.

A normal balloon at an amusement park can lift about ____.

So we need about 3,570,000 balloons to lift up the ____.

We also ____ to think about the weight of the balloons themselves and the strings.

Then, we need to add a ____ more thousand balloons.

Now, the biggest ____ is pumping up all those balloons!