1. THE WATER CYCLE.
The air contains a lot of invisible water droplets. Much
of this has come from water evaporating from the sea.
The invisible water droplets rise up into the air. High up
they cool and form drops of water as they condense.
These drops of water form clouds. The clouds are
blown by the wind onto the land. When the clouds
reach a hill or mountain, the water tarts to fall as rain
or snow. The rain collects in rivers and flows back to
the sea. This is called the water cycle.