Water resources

2.  Water is an important resource.
 People use water for drinking, farming &
cooking.

3.  People also swim, fish & play in water too.

4. Can we drink from the water which we swim in?
- Of course not, because they are different types of water.

5.  We have two types of water resources:
1) Fresh water resources: The type of water
used for drinking.
2) Salt water resources: The type of water
which is not used for drinking.
Water resources

6.  It’s found in rivers, ponds, lakes & streams.

7.  Glaciers, Ice bergs & Sea ice are also examples
of fresh water although this water is frozen.

8.  Also “ground water” water that is held in
rocks below the ground is a kind of fresh
water.

9.  This kind of water is not used for drinking.
 Most of the earth’s water is salty water like:
Oceans & Seas.

10. Mum, How do we
get the water we
drink from the
rivers to our home?
Well, water gets
to us through
many ways, let’s
see

11. How do people get water?
Aqueducts Reservoirs Wells

12.  They are pipes that carry water to where it is
needed.
Aqueducts

13.  In some places, people build a wall “Dam”
across a river & water gathers behind it.
Reservoirs

14.  They are deep holes that people dig to reach
the underground water.
 These wells are filled with the underground
water & then we pump it out.
Wells

15. Do you think we can drink water directly from the river?
Of course not, As this water is not clean yet

16. Treating water
To treat water, is to make water safe & clean
for people to drink
Water from rivers & lakes may contain very harmful
materials, that’s why we have to clean water & treat it first
before we drink it

17. Step (1):
Water sit still in a tank, so heavy
things in the water fall in the
bottom of the tank.
Steps of treating water

18. Step (2):
Water move to layers of sand &
gravel, these layers trap mud &
tiny things

19. Step (3):
Then chemicals are added to kill
any harmful things in the water

20. Step (4):
Clean water is then pumped to
people

29. - Water pollution happens when harmful things
get into water.
- Pollution makes living things sick.
Water pollution

30. Types of pollution
Natural pollution Man – made pollution
Happens naturally
Happens because of
people

31. - Rain washes pollutants “like: dust”
from air & land into the water.
Natural pollution

32. - People use fertilizers to help plants to grow.
- These fertilizers soak into the ground &
pollute ground water.
Man-made pollution

33.  Conserving resources is to
use resources wisely, so
they can last for a longer
time.
Conserving resources

34. Ride your bicycle instead of the car whenever you can.
This can conserve fossil fuels

35. Turn down the heater & wear a sweater, if it’s cold.
This can conserve fossil fuels

36. Turn off the lights when leaving a room.
This can conserve fossil fuels

37. Turn off the water tap while brushing your teeth.
This can conserve water

38. Plant trees & other plants.
This can protect the soil & helps put oxygen back to the air

39. This can protect land & water
Dispose your trash & chemicals properly.