Class 5 EVS




Water which is available under the ground is called groundwater. Well and bore-well are dug to take out groundwater.

When it rains, most of the rainwater seeps in the ground. This recharges groundwater reservoir. But because of too much construction of buildings and roads, this system has been disturbed. As a result, natural recharge of groundwater has been disturbed. So, level of water in groundwater reservoirs is going down. The level of water in groundwater reservoirs is called water table.

Rainwater Harvesting

When some structure or a system is made to collect rainwater, it is called rainwater harvesting. Rainwater is collected in open tanks or underground tanks. Some of this seeps under the ground and recharges groundwater. Some of this water is directly used by people. Our country has a long history of rainwater harvesting. It was especially done in those states where rainfall is scarce. Even today, old structures of rainwater harvesting can be seen at many places in Rajasthan and neighbouring states. There are different names for such structures. For example, step well, baoli, talab, etc.


Ghadsisar Lake

You have read about Ghadsisar of Jaisalmer in this chapter. Sar is Hindi word which means a lake. This lake was made by king Ghadsi of Jaisalmer around 650 years ago.

The lake is surrounded by steps which lead to the lake. There are verandahs, rooms, halls and many more structures around the lake. The lake was a hub of all sorts of activities, like festivals and many other rituals. Students even came to attend classes.

This lake was connected to many other lakes. During rainy season, when the main lake started to overflow with water, the water flowed into other lakes to fill them. Similar step wells can be seen at many other places in Rajasthan. These rainwater harvesting structures were very useful. They ensured supply of water for the whole year.

Tarun Bharat Sangh

Tarun Bharat Sangh is a group of people which helps in building rainwater harvesting structures. If a village suffers from shortage of water, it can ask for help from Tarun Bharat Sangh. People from this group come and revive old structures for water harvesting. They also help in reviving an abandoned lake or pond. Reviving an old pond helps in conservation of water.

Customs Related to Water

Water Tap

There are many customs and rituals related to water.

These customs speak about the importance of water for us.

You have understood that water is precious for us. So, we should not waste a single drop of water. You can follow these steps to conserve water.