Name: 太陽系行星 | 兒童行星 | 瞭解有關行星的有趣知識 (Planets of Our Solar System | Planets for Kids | Learn interesting facts about the planets)
Uploaded: 2025-05-05T06:57:52.000Z
Duration: 18 min 34 s

Not so long ago, when I was your age, my mom bought a new refrigerator.

不久前，在我像你這麼大的時候，我媽媽買了一臺新冰箱。

I didn't care much about the fridge until I saw the biggest, most amazing box I had ever seen in my life!

在我看到我這輩子見過的最大、最神奇的盒子之前，我對冰箱並不太在意！

It was three times as big as I was, and seemed like it took up half the kitchen.

它有我的三倍大，似乎佔據了半個廚房。

I shouted across the room to my mom, Can I keep it, please?

我隔著房間對媽媽喊道：我能留著它嗎？

After some convincing, she agreed, on one condition.

經過一番說服，她同意了，但有一個條件。

That's perfect, I said excitedly, because rocket ships do not belong in kitchens.

太好了，我興奮地說，因為火箭船不屬於廚房。

I spent two weeks building the perfect rocket ship, with orange and blue paint, and windows to see the stars at night.

我花了兩週時間建造了一艘完美的火箭飛船，塗上了橙色和藍色的顏料，還開了窗戶，以便晚上能看到星星。

I had so much fun that summer, learning how to use a telescope, going on pretend trips to space, looking at stars, and imagining what it would be like to visit all the planets in our solar system.

那個暑假我玩得很開心，學習如何使用望遠鏡，假裝去太空旅行，觀察星星，想象訪問太陽系所有行星的情景。

That summer, even though my trips to space were totally pretend, the moon and stars and planets we saw with our telescope were all very real.

那個夏天，儘管我的太空之旅完全是假裝的，但我們用望遠鏡看到的月亮、星星和行星都是非常真實的。

They are all part of a larger planetary system called a galaxy.

它們都是被稱為星系的更大行星系統的一部分。

A galaxy, by definition, is a system of millions or even billions of stars, dust, and gas that is all held together by gravity, which keeps it all in place.

星系，顧名思義，是由數百萬甚至數十億顆恆星、塵埃和氣體組成的系統，它們在萬有引力的作用下聚集在一起，保持著各自的位置。

Galaxies are enormous, and our universe is made up of billions of them.

星系是巨大的，我們的宇宙由數十億個星系組成。

The name of our galaxy is the Milky Way galaxy.

It gets its name because all those white stars look like a giant spilled glass of milk.

之所以叫它 "牛奶杯"，是因為所有這些白色的星星看起來就像一杯巨大的打翻了的牛奶。

Let's talk about what's inside the Milky Way, and no, it's not caramel, but that would be super awesome.

讓我們來談談銀河裡面有什麼吧，不，那不是焦糖，但那會超級棒的。

That's not actually a word, but it is very, very big.

這其實不是一個詞，但它非常非常大。

And our solar system fits inside the Milky Way galaxy, which gives you an idea just how massive our galaxy really is.

而我們的太陽系就在銀河系內，這讓你知道我們的銀河系到底有多龐大。

The moon, the sun, eight planets, including Earth, space rocks, and other cool things are all part of that solar system.

月球、太陽、包括地球在內的八大行星、太空岩石和其他很酷的東西都是太陽系的一部分。

But in this video, we are going to focus on our eight planets.

但在本視頻中，我們將重點介紹我們的八大行星。

To be considered a planet requires three things.

要成為一顆行星，需要具備三個條件。

One, it is a large object with enough gravity to pull itself into a round shape.

其一，它是一個巨大的物體，有足夠的引力把自己拉成圓形。

Two, it must be big enough to push away or consume other objects in its path.

其二，它必須足夠大，能夠推開或吞噬路徑上的其他物體。

And three, it must revolve or move around a star.

第三，它必須圍繞恆星旋轉或運動。

In our solar system, that star is the sun.

在我們的太陽系中，這顆恆星就是太陽。

沒錯，太陽是一顆巨大的恆星。

And the eight planets in our solar system all revolve or move around that star.

太陽系中的八大行星都圍繞著這顆恆星旋轉或運動。

One thing that makes each of the planets unique is that none of them move at the same speed.

每顆行星都有一個獨特之處，那就是它們的運動速度都不一樣。

For example, it takes 365 days, or one year, for the Earth to revolve just one time around the sun.

例如，地球繞太陽公轉一圈需要 365 天，即一年。

On Mars, it takes almost twice that long.

在火星上，幾乎需要兩倍的時間。

And on Neptune, it takes 165 Earth years for it to move around the sun once.

而在海王星上，它繞太陽轉一圈需要 165 個地球年。

Or is there another reason it takes Neptune so long to orbit the sun?

或者說，海王星繞太陽運行如此之久是否另有原因？

Take a look at these eight kids standing around a big yellow ball.

看看這八個孩子圍著一個黃色的大球站著。

The ball represents the sun, and the kids represent each of the planets.

球代表太陽，孩子們代表各個行星。

Now watch what happens when they start to move or revolve around the sun.

現在看看當它們開始移動或圍繞太陽旋轉時會發生什麼。

Some of the kids are able to move around the ball quicker than other kids.

有些孩子能比其他孩子更快地移動球。

That's because they are closer to the ball, so they have less distance to travel.

這是因為他們離球更近，所以移動距離更短。

The kids are also different sizes, and some are faster than others.

孩子們的體型也不一樣，有的比有的快。

Just like the kids and the yellow ball, the planets are also different distances from the sun.

就像孩子們和黃球一樣，行星與太陽的距離也各不相同。

The planets that are closest to the sun have the shortest distance to move, while the planets that are farthest away from the sun have a longer distance to go.

離太陽最近的行星移動距離最短，而離太陽最遠的行星移動距離較長。

And just like with the kids, the size and mass of each planet also affects their speed.

和孩子們一樣，每顆行星的大小和品質也會影響它們的速度。

Not only do the planets revolve around the sun, but they also spin while they are revolving.

行星不僅圍繞太陽公轉，而且在公轉的同時也在自轉。

Can you think of something that happens every day on Earth because Earth spins?

你能想到因為地球自轉而每天在地球上發生的事情嗎？

Have you ever wondered where the sun goes each night?

你有沒有想過太陽每晚都去了哪裡？

And when it's daytime on one side of the planet, it's nighttime on the other.

當地球一側是白天時，另一側就是黑夜。

Guess how long it takes Earth to make one full spin?

猜猜地球轉一圈需要多長時間？

12 hours during the day, and 12 hours during the night.

And just like the planets don't revolve at the same speed, they don't spin at the same speed either.

就像行星不會以相同的速度旋轉一樣，它們也不會以相同的速度旋轉。

On Jupiter, it takes less than 10 Earth hours to make one full spin.

在木星上，旋轉一圈只需要不到 10 個地球小時。

但在水星上，這需要 59 個地球日！

By the way, have you ever wondered why you can't feel the Earth spinning?

對了，你有沒有想過為什麼你感覺不到地球在旋轉？

If you've ever flown on an airplane, that plane was probably traveling at about 500 miles per hour.

如果你坐過飛機，那飛機的時速可能在 500 英里左右。

That's about five times faster than your car goes!

這大約是你的汽車速度的五倍！

But when you're in an airplane, it doesn't feel like it's moving at all.

但當你在飛機上時，卻感覺不到它在移動。

In fact, on longer trips, you might even wish it moved faster.

事實上，在長途旅行中，您甚至會希望它行駛得更快一些。

The reason you don't feel like you're moving on an airplane is because you are moving with the airplane.

你在飛機上之所以感覺不到自己在移動，是因為你在隨著飛機一起移動。

Since we're on Earth, and the Earth is spinning, we spin with it and don't even notice it.

因為我們在地球上，而地球在旋轉，所以我們跟著它一起旋轉，甚至沒有注意到它。

Some of the planets are made of rock, while others are made of gases, which means those planets are not completely solid.

一些行星是由岩石構成的，而另一些行星則是由氣體構成的，這意味著這些行星並不是完全固態的。

The planets made of gas spin quicker than the planets made of rock.

由氣體組成的行星比由岩石組成的行星旋轉得更快。

Let's take a closer look at each of our eight planets.

讓我們仔細看看我們的八大行星。

Mercury is the closest planet to the Sun.

It is also the smallest of the eight planets.

它也是八大行星中最小的一顆。

It's about the same size as the Moon and has very little atmosphere.

它的大小與月球差不多，大氣很少。

Atmosphere is like a see-through shield that protects planets from space rocks and other debris.

大氣層就像一面透明的盾牌，保護行星免受太空岩石和其他碎片的傷害。

So, if there isn't much atmosphere, those rocks can end up hitting the planet, creating giant holes, or craters.

是以，如果沒有太多大氣層，這些岩石最終會撞擊地球，形成巨大的坑洞或隕石坑。

Think of 100 degrees Fahrenheit in summer.

這麼熱的天，你能在外面待多久？

How long would a popsicle last before it melts?

Now imagine if it was eight times hotter than that, or 800 degrees Fahrenheit.

現在想象一下，如果溫度比它高八倍，即華氏 800 度。

That's the temperature on Mercury during the day.

If you've ever wondered why people don't live on other planets, heat is a big reason for Mercury.

如果你想知道為什麼人們不生活在其他星球上，那麼熱量是水星的一個重要原因。

However, Mercury is not the hottest planet in our solar system.

然而，水星並不是太陽系中最熱的行星。

Even though Venus is not the closest planet to the Sun, it is the hottest.

儘管金星不是離太陽最近的行星，但它卻是最熱的行星。

Unlike Mercury, which has a thin atmosphere, the atmosphere on Venus is very thick.

與大氣層稀薄的水星不同，金星上的大氣層非常厚。

Its atmosphere traps heat from the Sun, so the planet gets extremely hot.

它的大氣層會捕獲太陽的熱量，是以這顆行星會變得非常熱。

Venus is about 900 degrees Fahrenheit, making it the hottest planet of them all.

金星的溫度約為華氏 900 度，是最熱的行星。

But that's not the only thing that makes Venus different from the other planets.

但這並不是金星與其他行星不同的唯一原因。

Do you know any kids at your school that have to do the opposite of what every other kid is doing?

你知道學校裡有哪些孩子必須做與其他孩子相反的事情嗎？

Venus spins slowly and in the opposite direction of most planets.

金星旋轉緩慢，方向與大多數行星相反。

Even though Venus is a lot hotter than Earth, it is similar to Earth in size and shape.

儘管金星比地球熱很多，但它的大小和形狀與地球相似。

Speaking of Earth, Earth is where we live.

說到地球，地球就是我們生活的地方。