The Water Cycle

The Water Cycle. Written by Eva Valentino. Focus Question. What is the water cycle and why is it important?

水循环。 作者：伊娃·瓦伦蒂诺。 聚焦问题。 什么是水循环？它为什么很重要？

Water all around us. Water covers most of Earth. It's found in lakes, rivers, and oceans. It's on top of mountains in the form of snow or ice. It's deep under the ground. Water is even in the air around you.

我们身边到处都是水。 地球的大部分表面都被水覆盖。 湖泊、河流和海洋里都有水。 山顶上的水以雪或冰的形态存在。 地底深处也有水。 就连你周围的空气里也有水哦。

The water you see today has been around for a long time. Did you drink water this morning? It might be the same water a dinosaur drank a million years ago.

你今天看到的水已经存在很久很久啦。 你今天早上喝水了吗？ 你喝的水说不定和一百万年前恐龙喝的是同一批哦。

How is this possible? All water on Earth is recycled. Although you can't always see it happening, Earth's water is moving around in a never -ending pattern. This pattern is called the water cycle.

这怎么可能呢？因为地球上所有的水都会循环利用。 虽然你不一定总能看到， 但地球上的水一直按照永不停歇的模式循环流动。 这个模式就叫做水循环。

from liquid to gas. Imagine a puddle of water on a hot day. As the day goes on, the puddle of water gets smaller and smaller until it's completely gone.

从液态到气态。 想象一下大热天里的一滩水。 随着时间推移， 这滩水会变得越来越小越来越小，直到彻底消失不见。

Although you can't see it anymore, the water didn't just go away. The puddle grew smaller because heat from the sun turned the liquid water into an invisible gas.

虽然你再也看不到它了，但水并没有凭空消失。 水滩变小是因为太阳的热量把液态水变成了看不见的气体。