Water is essential for life and comes from various sources like rain, rivers, oceans, canals, dams, wells, and tanks. Rain is the main source of fresh water for agriculture. Canals, wells, and tanks help supply water for irrigation when rainfall is inconsistent. Dams are built across rivers to store water and provide irrigation, electricity, and flood control. It is important to conserve our water resources through practices like rainwater harvesting and not polluting water bodies.

1. WATER
RESOURCES

2. WHAT IS WATER?
 Water is essential for life.
 No living being can survive
without water.
 It is needed for our daily
activities.
 It is very precious and hard to
obtain in pure form.

3. MAIN SOURCES OF WATER
 RAIN
 RIVERS
 OCEANS
 CANALS
 DAMS
 OASIS
 WATER TANKS
 TUBEWELLS

4. RAIN
 Rain is the main source of fresh water.
 Farmers mostly depend on the monsoon for
irrigation.
 As rainfall is not distributed throughout the
country so we need sufficient and reliable
supply of water throughout the year for
growing crops.

5. CANALS
 Canals are the channels that are dug to
draw water from rivers to the fields.
 India has a very good network of canals.
 Examples: Indira Gandhi canal
Sirhind canal
Agra canal

6.  In villages, people dig wells to draw the
underground water to the surface.
 When the underground water is very deep, holes
are bored with the help of drilling machines.
 Water is brought up with the help of an electric
pump called tube wells.
 Tube wells are widely used in Punjab, Haryana,
UP and Gujrat for irrigation.
WELLS AND TUBE WELLS

7.  In the Southern Plateau, it is difficult to dig the
ground because the land surface has hard rocks.
 Therefore, people collect water in tanks and
ponds during rainy seasons.
 The collected water is used for irrigation purpose.
 Tanks are commonly used in Andhra Pradesh,
Tamil Nadu and Karnataka.
TANKS

8. DAMS
 Dams are strong walls built across a river to
hold back the flow of water.
 Dams are used for producing electricity.
 Dams help to control floods.
 Dams also help in fish breeding.
 Dams are an ideal place for fishing.

9.  Reservoir is an artificial lake.
 It is formed behind the dam.
 Canals take this water to the fields for
irrigation.
RESERVOIR

10. WHY DO WE NEED TO CONSERVE
WATER?
 Water is very important for our existence.
 So, it is our duty not to pollute water
bodies but to conserve water.

11. WAYS TO CONSERVE WATER
 We should not throw garbage and harmful
substances into water bodies.
 We should not wash clothes or bathe animals in
rivers.
 Close the taps properly after use.
 Reuse kitchen water to water plants in your
garden.
 Conserve water through rainwater harvesting and
other conservation techniques.

12. NOW YOU KNOW…
 Water is very important for life.
 Rain is the main source of fresh water.
 Canals, wells, tanks e.t.c are built for irrigation purpose.
 People dig wells to bring underground water to surface.
 People collect water in tanks and ponds during rainy
season.
 Dams are built across a river to hold water.
 Conserve water through rainwater harvesting.

13. REFRENCE
 Class 4 Learnwell, social studies
 Google images

14. THANK YOU