This document discusses the importance and sources of water. It begins by asking key questions about why water is important and how to keep it clean. It then reviews lessons on factors that harm soil. The main sources of water discussed are salt water from oceans, fresh water from rivers and lakes, groundwater, and water in the air. The water cycle is described as moving water between the air and land. Various uses of water are identified, including for drinking, washing, bathing, plants, and animals. The document emphasizes that water is essential for all living things.

1. Sources of Water /Uses of water
Prepared by:
Shirley Puaso –Valera
Grade 3 – St. Francis / St.Augustine / St. Maria Goretti

2. Key Questions:
A. Why is water important?
B. How can you keep our water clean and safe
to use?

3. Objectives
A. Explain the importance of water.
B. Identify the sources of water.
C. Describe the uses of water.

4. Review of the past lesson
Factors that harm the soil

5. Describing the picture
Questions:
A. What is it?
B. Have you seen a
body of water like this?
C. How does water help
us?

6. Wheel Diagram
Write a word/s on each spoke that is related to
the word inside the wheel.
water

7. Sources of Water
1.Salt water from seas and
oceans
- most of the water that covers the
earth’s surface is ocean water.
There are many minerals in the
oceans, but salt is the most
common . Salt comes from minerals
that are carried down into the seas
and oceans. This is the reason why
ocean water is salty. ( when salt
water in a basin is placed , water
evaporates into the air, the salt
remains in the basin

8. Sources of Water
1. Salt water from seas and
oceans
- Scientist say that the ocean
produces 805 of the oxygen we
breathe. This is possible because
of planktons, the tiny –releasing
organisms that live in the oceans
and seas.
- Seawater is the habitat of
aquatic plants and animals

9. Sources of Water
2. Fresh water from rivers , lakes ,
and ponds
- it does not contain salt
- It is rainwater that flows from
land into streams and rivers.
- It is usually used for cleaning,
washing, bathing,
and other
household chores

10. Sources of Water
2. Fresh water from rivers ,
lakes , and ponds
- it is easily become
polluted because they
are open.
- People can throw
domestic and industrial
wastes into it

11. Groundwater
- Is kept in a closed container
called the water table.
- This condition prevents it
from becoming dirty
- It is safe from domestic
wastes
- It is safe from poisonous
chemicals

12. Groundwater
- It is safe source of water.
Considered the cleanest
water and contains plenty
of dissolved minerals that
the human body needs.

13. Groundwater
- It is a safe and direct source
of water for cooking and
drinking.
- Most of the subdivisions
and residential areas that
do not have public water
facilities get their water
from groundwater. They
usually have deep well that
provide them water for
their needs

14. Groundwater
- Is kept in a closed container
called the water table.
- This condition prevents it
from becoming dirty
- It is safe from domestic
wastes
- It is safe from poisonous
chemicals

15. Water in the air
- Water moves from
the air to the land,
and from the land to
the air. This
movement of water
between the air and
land is called water
cycle .

16. Water in the air
- Water cycle is a
very important
cycle.
- It goes on all the
time. Without it , life
on Earth would be
impossible

17. Water Cycle

18. Group singing
This is the way we take a bath( 3x)
This is the way we take a bath so early
in the morning
Change take a bath to: water
plants, wash our clothes , clean our
house

19. Think –Pair-Share
Identify some other uses of water

20. Activity 8.3: Importance of water
Problem: How does water help us?
What you need:
pictures of the following:
a ship traveling in the sea
a girl drinking water
a pond with animals in it
a family on the beach

22. Activity 8.3: Importance of water
What to do:
1.Get a partner to work with on this activity.
2.Look at the pictures.
3.Study the importance of water in each
picture?
What have you found out?

23. Activity 8.3: Importance of water
What have you found out?
1. What can a ship do? What is the ship dong in
the water? __________________________
2. What is the girl doing? __________________
3. What are the animals doing in the pond?
_________________________________
4. What is the family doing on the beach?
____________________________________

24. Activity 8.3: Importance of water
Conclusion:
What are the uses of water to people and other
living things?
_______________________________________
_____________________________________
_____________________________________
_____________________________________
_____________________________________
_____________________________________

25. Presentation

26. Different uses of water using the
converging radial.
Uses of
water

27. Generalization
• Water covers about three-fourths of the
earth’s surface.
• Water comes from different sources. The
different kinds of water are: salt water from
seas and oceans; fresh water from rivers, lakes ,
and ponds; ground water beneath the earth’s
surface; and water in air.

28. Valuing
• Water conservation

29. Evaluation
A. Write YES if the statement is correct and NO
if it is not. (p.302-A)
B. Answer the following.
1. What are the uses of water to living
things?
2. Why is water cycle important?