水の循環

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Water is always moving through the environment in a continuous cycle.
Water is constantly moving around the environment through an endless cycle.
When the sun heats the surface of oceans, lakes, and rivers, water evaporates and rises into the air as water vapor.
When the sun heats the surface of oceans, lakes, and rivers, water evaporates and rises into the air as water vapor.
As water vapor rises higher into the atmosphere, it cools down and turns into tiny water droplets.
As water vapor rises higher into the atmosphere, it cools and transforms into tiny water droplets.
These droplets come together to form clouds.
These water droplets gather together and form clouds.
When clouds collect enough water, the water falls back to the ground as precipitation, such as rain or snow.
When clouds collect enough water, the water falls back to the ground in the form of precipitation such as rain or snow.
Some of this water flows into rivers and oceans, while some soaks into the ground.
Some of this water flows into rivers and oceans, and some seeps into the ground.
Then the cycle begins again, making sure that Earth always has a supply of fresh water.
Then the cycle begins again, ensuring that Earth always has a supply of fresh water.