Water cycle

1. Evaporation

   The sun heats the water in the sea. It turns into vapour and rises into the sky.

2. Condensation

   It's cold up high: the vapour gathers into tiny droplets and forms clouds.

3. Precipitation

   The clouds fill up with water, and it falls as rain or snow.

4. Rivers

   The water runs down the mountains in rivers and back to the sea. And round it goes again!