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Science
Quarter 4 – Module 2:
Uses of Water
Science – Grade 4
Quarter 4 – Module 2: Uses of Water
First Edition, 2021

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Published by the Department of Education – Region XI

Development Team of the Module

Writer: Jayson P. Lumbaning

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Reviewer: Luievee Z. Pulvera
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Department of Education – Division of Davao City

Office Address: E. Quirino Avenue, Davao City

Telephone: (082) 227 4762
E-mail Address: lrms.davaocity@deped.gov.ph
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Science
Quarter 4 – Module 2:
Uses of Water
Introductory Message
For the facilitator:
As a facilitator, you are expected to orient the learners on how to
use this module. You also need to keep track of the learners' progress
while allowing them to manage their own learning at home.
Furthermore, you are expected to encourage and assist the learners as
they do the tasks included in the module.

For the learner:

As a learner, you must learn to become responsible of your own
learning. Take time to read, understand, and perform the different
activities in the module.
As you go through the different activities of this module be
reminded of the following:
1. Use the module with care. Do not put unnecessary mark/s on any
part of the module. Use a separate sheet of paper in answering the
exercises.
2. Don’t forget to answer Let Us Try before moving on to the other
activities.
3. Read the instructions carefully before doing each task.
4. Observe honesty and integrity in doing the tasks and checking
your answers.
5. Finish the task at hand before proceeding to the next.
6. Return this module to your teacher/facilitator once you are done.
If you encounter any difficulty in answering the tasks in this
module, do not hesitate to consult your teacher or facilitator. Always
bear in mind that you are not alone. We hope that through this material,
you will experience meaningful learning and gain deep understanding
of the relevant competencies. You can do it!

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 Let Us Learn

A great day to you dear learner! In this module, you will learn the
uses of water from different sources in the context of daily activities
(S4ES-IVb-2).

At the end of this module, you are expected to:

• Identify the different sources of water suitable for human
consumption.
• Explain the uses of water from different sources in the
context of daily activities.

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 Let Us Try!

Identify the source of water each item describes. Write only

the letter of your answer on a separate sheet of paper.

1. Rofel wants to generate electricity for their community in a

far flung area. What sources of water can he use?
A. dam and waterfalls C. rivers and spring
B. ocean and spring D. waterfalls and ocean

2. Emilyn wishes to have good water to drink. What source of

water can she use to get potable water?
A. dam C. waterfalls
B. ocean D. rivers

3. Lorena’s father is a fisherman. In what source of water can

she get volume of fish to sell?
A. ocean C. stream
B. river D. waterfalls

4. Marina is looking for a source of water that is hot yet

therapeutic. In what source of water will she go?
A. dam C. spring
B. ocean D. stream

5. What source of water Hermivel can use in irrigating rice

crops in her field?
A. dam and waterfalls C. river and dam
B. ocean and spring D. stream and spring

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 Let Us Study
A. Read and understand the short story. Afterwards, answer the
following questions.

Take Care of Me
(Originally written by the author)

Once upon a time, there was a family who lived near the
seashore. During dawn, Mr. Arthur, the father, together with Mrs.
Rose, the mother, went to the ocean to get fish to eat and sell. They
catch fish using dynamite. They were able to catch different sizes of
fish from biggest to smallest.
Ben, Grace and Tim were well provided with their needs in their
studies and even their wants. They enjoyed comfortable life provided
to them by their parents.
One early morning, the children noticed that there were a lot of
dead fishes floating in the sea. They notified their parents and asked
what happened. Mr. Arthur and Mrs. Rose had no idea on what was
happening.
The next dawn, the parents went fishing again. To their
surprise, they caught nothing. They threw more dynamites but no
fish came out. They went home gloomy and felt frustrated. The family
members sat down and talked what happened. They remembered the
dead fishes drifted out to sea.
“Maybe the fishes in the ocean were poisoned by the dynamite
that you have used”, Ben said. “Big and small fishes get killed due to
the explosions brought by dynamite fishing”, Grace and Tim added.
The parents realized their mistake and blamed themselves.
They promised not to use dynamite in fishing anymore.
Few months later, the family noticed various fishes in the sea.
Mr. Arthur and Mrs. Rose went to the ocean to catch fish. That time,
they used fish net instead of dynamite. Barrels of fishes were caught
and the family was extremely happy with the fish they got.

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 Questions:

1. At the first part of the story, what did the couple use in
fishing?
________________________________________________________

2. After few months of fishing using dynamite, what did the

family observe?
________________________________________________________

3. What do you think is the reason behind those dead fishes

drifted out to sea?
________________________________________________________

4. Do you think using dynamite in fishing is good? Why or

why not?
________________________________________________________

5. If you were one of the characters in the story, would you

help preserve the fishes? How?
________________________________________________________

B. You have already an idea on the importance of taking good

care of the ocean as one of the sources of water. This time
you are now ready to learn the different sources of water.

Water is found on the surface of the earth and underground.

Earth’s surface is composed of almost 70% of water. Here are some
of the sources of water that we use every day (Abracia, Norma M.
et. al. 2014).

Surface water is where the water travels or is stored above

the ground. These are the following:

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 Ocean
Sources of
Description Uses Examples
Water
These are These serve as Pacific Ocean
bodies of water home for many Atlantic Ocean
which cover aquatic plants and
Seas and about three- marine organisms. Celebes Sea
Oceans fourths of People depend for Sulu Sea
Earth’s surface. food and livelihood Philippines Sea
in this body of South China
water. Sea

Lake

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Sources of
Description Uses Examples
Water
These are bodies It is the source of
Laguna de Bay
of water freshwater fish and
Lakes Taal Lake
surrounded by certain aquatic
Lake Lanao
land. plants.

River
Sources of
Description Uses Examples
Water
These are small It can be used for
bodies of flowing drinking, irrigation
Pasig River
water that of nearby farms
Rivers Marikina River
usually empty and as
Loboc River
into oceans and passageway.
seas.

Stream
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Sources of
Description Uses
Water
These are flowing bodies of
water but are smaller than It can be used for
Streams rivers. These are usually found taking bath and
in caves or between gaps in the washing clothes.
ground.

Waterfalls
Sources of
Description Uses Examples
Water
It flows from
high places
where water
flows in the Pagsanjan Falls
It can be used for
course of a river Maria Cristina
Waterfalls generating
or stream then Falls
electricity.
abruptly drops
vertically into a
large pool
below.

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 Dam
Sources of
Description Uses Example
Water
These are built It serves as
as reservoirs of storage of potable
water to be water, irrigation,
Dams used by people flood control and Angat Dam
in adjacent power generation.
towns and
cities.
Ground water is water found beneath the Earth’s surface. Example
of it are the springs.

Spring
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 Sources of
Description Uses Example
Water
These are It can be used for
ground water therapy due to its
Many springs
that flow or warm water. Also,
Springs are found in
leak out use for drinking.
Laguna
directly from
the ground.

Let Us Practice

Activity 1: How Am I Used?

Direction: Study the illustrations below and explain how these
sources of water are being used in your daily living.

Example:

Waterfalls are used to generate electricity.

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 River

____________________________________

____________________________________

____________________________________

____________________________________

____________________________________

____________________________________

Ocean
____________________________________

____________________________________

____________________________________

____________________________________

____________________________________

____________________________________

Stream
____________________________________

____________________________________

____________________________________

____________________________________

____________________________________

____________________________________

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 Every source of water has its individual functions. Human
beings rely on the resources that we get from various sources of
water.

Let Us Practice More

Activity 2: An Art in Using Water (DepEd 2015)

Direction: Explain the uses of water in our daily activities through

art.

What to do:
1. Use the old magazines and cut-out pictures that show how
we use water every day.
2. Paste them on a bond paper.
3. Explain your output with at least 3 sentences.

_________________________________________________________________________________

_________________________________________________________________________________

_________________________________________________________________________________

____________
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 We should take good care of all the sources of water for
living things cannot live without it.

Self-Assessment Scoring Rubric for Activity 2

Put a check in the proper column.

YES NO
I followed the instructions carefully.

I was creative in doing the art.

I performed the activity by myself.

I explained the output in at least 3
sentences.
My output is neat and clean.
I followed the health and safety
procedures in doing the activity.

Let Us Remember

Let us always bear in mind the following:

Ø Water is found on the surface of the earth and

underground.
Ø Oceans, lakes, seas, streams, rivers, waterfalls, dams and
springs are sources of water.
Ø Oceans, lakes and seas are the sources of food to eat.
Ø Dams and waterfalls are the sources of electricity.
Ø Springs are therapeutic due to its warm temperature
coming from underground.
Ø Dams and rivers are sources of potable water.

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 Let Us Assess

A. Read and answer the questions carefully. Write your answer on

the separate sheet of paper.

1. What do you call the small bodies of flowing water that

usually empty into the oceans and seas?
A. dam C. river
B. lake D. sea

2. Seas and oceans cover what percent of Earth’s surface?

A. 1 C. 3
4 4
B. 2 D. 3
3 5

3. Dinnah found a source of water during their hiking. It is

smaller than a river. What source of water is it?
A. lake C. sea
B. ocean D. stream

4. The following are sources of potable water EXCEPT ______.

A. dam C. river
B. ocean D. stream

5. Which of the following sources of water are considered as

ground water?
A. river C. spring
B. sea D. stream

6. Which of the following shows the appropriate way of using

water?
A. Susan throws leftovers in the stream.
B. Kim brushes her teeth while turning on the faucet.
C. Bea enjoys playing the water leakage from the pipe.

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 D. Mika utilized used water in cleaning the comfort room.

7. In your science class, you are tasked to create rock salts.

Which of the following sources of water will you use?
A. Water coming from the river.
B. Water coming from the lake.
C. Water coming from the ocean.
D. Water coming from the waterfalls

8. The following are the uses of rivers EXCEPT______.

A. use for drinking
B. use for irrigation
C. use as a passageway
D. use as a source of electricity

9. Barangay Captain Marina wants to address the absence of

electricity in their community. What possible sources of
water can they use to generate electricity?
A. seas and oceans
B. streams and lakes
C. rivers and springs
D. dams and waterfalls

10. How will you utilize properly the water coming from the
spring?
A. Use it for drinking.
B. Use it for therapy.
C. Use it in washing clothes.
D. All of the above

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 Let Us Enhance

Activity 3: Illustrate where I came from!

Research about the sources of water in your community.
Where does the water from your faucet come from? Make a simple
illustration of how water from its source reaches your faucet at
home.

Self-Assessment Scoring Rubric for Activity 3

Put a check in the proper column.

YES NO
I followed the instructions carefully.
I performed the activity by myself.
My output is neat and clean.
My output is understandable.

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 Let Us Reflect

Water makes life possible for people, plants and animals.

It does not only help quench our thirst, but it also helps us
clean our surroundings, cooks our foods and even provides
electricity.
We get our needs from various sources of water. The
source of water we use every day depends on the needs that we
have.

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Let Us Assess Let Us Assess
Activity 1 (possible answers)
6. D 1. C
1. (Rivers) 7. C 2. C
Can be used to catch fish for 8. D 3. D
personal consumption and 9. D 4. B
commercial purposes.
10. D 5. C
Can be used for irrigation.
Can be used also forn drinking (if
water is clean).
2. (Oceans)
Can be used to catch fish for
personal consumption and
commercial purposes.
3. (Streams)
Can be used for taking bath.
Can be used for washing clothes.
Let Us Study Let Us Try
1. They use dynamite in fishing. 1. A
2. A
2. They noticed a lot of dead fishes floating in the sea. 3. A
3. Fishes were poisoned by the dynamite. 4. C
5. C
4. No. It kills small and big fishes and its habitat.
5. Yes.
I will only use fish net in catching fishes.
I will avoid throwing garbage anywhere for it might go to the sea and kill fishes.
Answer Key
 References

Abracia, Norma M. et. al. 2014. Science in our World. Quezon

City: Vibal Group, Inc.

DepEd. 2015. Science (Learners' Material). Pasig City:

Department of Education.

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For inquiries or feedback, please write or call:

Department of Education – Davao City Division

E. Quirino Avenue, Davao City

Telephone: (082) 227 4762

Email Address: lrms.davaocity@deped.gov.ph