Worksheet 82

82: The Water Cycle

1) Colour the following:

sea - light blue river and reservoir - dark blue

towns - grey land - green

2) Cut out the following statements and put them in the right place on the diagram.

Water is supplied to towns after it is treated at a Water Supply Works.	Water evaporates from the sea into the atmosphere, as invisible water vapour.
Water is supplied to towns from underground boreholes.	The water vapour rises. As it rises, it cools down to form water droplets. The water droplets condense to form clouds.
Water vapour also enters the atmosphere from transpiration by trees and plants.	Water is pumped from reservoirs into Water Treatment Works so that the water is clean for people to drink.
Dirty water is taken to the Waste Water Works, where it is cleaned.	Water from towns is put back into the sea by long outfall pipes, after being cleaned.
The clouds blow inland. More water droplets gather in the cloud.	Once the water droplets become too big, they fall as rain. The water goes into the river directly, or by trickling through the ground.
At the Waste Water Treatment Works, treated water is put back in the river.