Republic of the Philippines

Department of Education
Region V (Bicol)
Division of Albay
SAN PASCUAL NATIONAL HIGH SCHOOL
San Pascual, Libon, Albay

DAILY LESSON PLAN

NAME: CHERRY MAE R. REGALARIO QUARTER: 4TH
SCHOOL: SAN PASCUAL NATIONAL HIGH SCHOOL LEARNING AREA: SCIENCE
GRADE LEVEL: 10 DATE:

I. OBJECTIVES
The learners demonstrate an understanding of:
A. Content Standards
1. How gases behave based on the motion and
relative distances between gas particles
B. Performance Standard
Competency:
C. Learning Competencies/Objectives The learners should be able to:

1. Investigate the relationship between:

1.1 volume and pressure at constant
temperature of a gas;
1.2 volume and temperature at a constant
pressure of a gas;
1.3 explains these relationships using the
kinetic theory. (S10MT-IV-b-21)

Specific Objectives:
At the end of the lesson, the students should be able
to:

1. describe the properties and behavior of gases

in Kinetic Molecular Theory through group
activity;
2. develop an appreciation of the importance of
gases in daily life through oral recitation; and
3. demonstrate active participation and listening
skills by asking clarifying questions.

II. CONTENT/SUBJECT MATTER Gas Laws: Properties of Gases and Kinetic

Molecular Theory
III. LEARNING RESOURCES
A. References
1. Teacher’s Guide Page
2. Learners materials Page Science LM10 Q3 pp.362-368
3. Textbook Page
Pen and paper
4. Additional Materials Visual aids
Projector
Laptop
Printed materials
B. Other Learning Resources Images from google.com

IV. PROCEDURES
Teacher’s Activity Student’s Activity
Preliminaries:
1. Prayer/Greetings
2. Checking of Attendance (The students will do the preliminary activities.)
3. Short Cleanup
A. ELICIT
Possible answers from the students:

- The balloon expands because the air inside

gets warmer and needs more space.
- It expands because you are adding more air,
and the pressure makes the balloon stretch.
Questions: - The air particles inside the balloon push
• Have you ever wondered why a outwards, making the balloon bigger.
balloon expands when you blow air
into it? - Water boils because the heat makes the
• Why do water bubbles and boils when water molecules move faster and turn into
heated? steam.
- The bubbles are steam-forming because the
These are some of the events or processes water gets hot enough to change into gas.
that occur in our daily lives, which we aim to - The water turns to steam at boiling point,
explore with a deeper understanding and which is why it bubbles and looks like it’s
insight. boiling.

B. ENGAGE
Activity: REBUS GAME!
Instruction: Guess the word being
described using the given set of pictures and Answer:
letters by adding and subtracting them all
together.

✓ GAS

✓ VOLUME

✓ MASS

✓ PRESSURE

✓ TEMPERATURE

Based on our activity, what do you think will - Matter, specifically gases
be our discussion for today? - Properties of gases
- Gas Law
How do you define matter?
- Matter is anything that occupies space and
Very Good! All matter has mass including has mass, ma’am.
gases that occupy space and possess rest
mass, especially as distinct from energy.
During your 8th Grade, you’ve learned that
there are three phases of matter: solid, liquid,
and gas.

But for this quarter, we will talk about mostly

about gases.
Like other solids and liquids, gases are also
made up of molecules that behave
differently. Most of the properties of gases
can be attributed to the random and
scattered arrangement of their molecules,
which are located as far away as possible
from each other.

Now, since gases are also matter, our focus

is all about the behavior of gases, particularly
concerning the Kinetic Molecular Theory.
C. EXPLORE (Can be done by group or
individually) The students will do the task.
Part I.
What you have to do:
1. Fill your mouth with air. Press your
cheeks with your fingers.
2. Answer the following questions:
a. Did air occupy space in your
mouth?
b. Were you able to press your
cheeks with your fingers? Why?
c. When you pressed one of your
cheeks, did you feel the air moving
to the other side of your cheek?
Explain what happened.

Figure 1.

These students did the same activity described

above.
Question 1: What two students have made
INCORRECT statements?
Lito: Air can be squeezed or compressed
Mario: Air particles can be made to fill smaller
space
Ana: Air particles become smaller when pressed.
Susan: Air particles decrease in number when
pressed.

Answer: ______________________________

Part II.
What you have to do:
1. Blow air into a plastic bag and tie the
open end.
2. Squeeze and press it gently
3. Observe what happens.
 Figure 2.

These students did the same activity described

above.
Question 2: Which two students describe what
they observed?
Lito: The plastic bag is filled with air.
Mario: The plastic bag becomes smaller when
squeezed
Ana: The plastic bag burst when pressed gently.
Susan: The air particles inside become smaller
when the plastic bag was squeezed.

Answer: ____________________________

Part III.
What you have to do:
1. Spray a very small amount of perfume or
cologne into the air.
2. Answer the following:
a. Can you see the particles of perfume
or cologne?
b. How did it reach your nose?

Figure 3.

These students did the same activity described

above.
Question 3: Which two students made
incorrect interpretations?
Lito: Gas particles move in all directions
Mario: Gas particles can spread out in one
direction and fill up only a limited space
Ana: Gas particles are held together to forces
which prevent them from moving
Susan: Gases are made up of tiny particles
which move around all the time.

Answer: ________________________

D. EXPLAIN
Part I. Part I.
Answer the following questions: a. Yes
a. Did air occupy space in your mouth? b. Yes. Air can be compressed
b. Were you able to press your cheeks c. Yes. Air particles can be made to fill other
with your fingers? Why? space
c. When you pressed one of your
cheeks, did you feel the air moving to
the other side of your cheek? Explain
what happened.
Question 1: What two students have made Question 1. Susan and Ana
INCORRECT statements?
Lito: Air can be squeezed or compressed
Mario: Air particles can be made to fill smaller
space
Ana: Air particles become smaller when pressed.
Susan: Air particles decrease in number when
pressed.

Part II
Question 2: Which two students describe what Part II.
they observed? Question 2. Ana and Mario
Lito: The plastic bag is filled with air.
Mario: The plastic bag becomes smaller when
squeezed
Ana: The plastic bag burst when pressed gently.
Susan: The air particles inside become smaller
when the plastic bag was squeezed.

Part III. Part III.

Answer the following:
a. No
a. Can you see the particles of perfume or
cologne?
b. Gas particles can be spread out in all
b. How did it reach your nose? directions.

Question 3: Which two students made

incorrect interpretations? Questions 3. Mario and Ana
Lito: Gas particles move in all directions
Mario: Gas particles can spread out in one
direction and fill up only a limited space
Ana: Gas particles are held together to forces .
which prevent them from moving
Susan: Gases are made up of tiny particles
which move around all the time.

E. ELABORATE

Most gases are invisible. Unlike solids and

liquids, they don’t have a fixed shape or
volume. Instead, they spread out to fill
whatever container they are in.

We have just learned from the Activity that Ma’am, the properties of gases that affect their
there are factors that affect the behavior of behavior are namely; mass, volume, temperature,
gases or what we call the properties of and pressure.
gases, can anyone name the four?

Very Good! Thank you!

To further understand everything, some

principles explain the behavior of gases at
the molecular level; the Kinetic Molecular
Theory. Here are the key concepts of Kinetic
Molecular Theory that we have discussed a
while ago.
The Kinetic Molecular Theory helps us
understand the behavior of gases by
describing the motion of gas particles and
their interactions. According to this theory:

Gas Particles: Gas particles are in constant,

random motion. They move in straight lines
until they collide with each other or the walls
of their container.

Volume: Gas particles have negligible

volume compared to the volume of the
container they are in.

Collisions: Gas particles undergo elastic

collisions, meaning that no energy is lost
during collisions.

Temperature: The average kinetic energy of

gas particles is directly proportional to the
temperature of the gas in Kelvin.

Pressure and Volume: The pressure

exerted by a gas is directly proportional to
the number of collisions the gas particles
make with the walls of their container.
Similarly, the volume occupied by a gas is
inversely proportional to the pressure exerted
on it.

Understanding the properties of gases and

the Kinetic Molecular Theory helps us
explain various gas behaviors, such as why
balloons inflate when filled with air, and why
a basketball needs to be pumped up or
inflated. These concepts are fundamental to
understanding many aspects of chemistry
and everyday life. Breathing: Gases like oxygen are crucial for
respiration.
Question: With this understanding of the We need oxygen to breathe, which is a gas. Without
behavior and properties, what do you think is it, we wouldn't survive.
the importance of gases in our daily lives?
Who can provide another example? Cooking: Gases are often used in cooking
processes.
When we use a gas stove to cook, we're using
natural gas as a fuel source.

Transportation: Gases power vehicles and

transportation systems.
Cars and buses run on gasoline, which is a liquid
that turns into gas when burned.

F. EVALUATE
I. Multiple Choice
Direction: Read and choose the letter that
corresponds to the correct answer. Write
your answers on a ¼ sheet of paper.
1. It refers to anything that occupies
space and has mass.
A. Volume
B. Pressure
 C. Gases Answer:
D. Matter I.
2. Which of the following best describes 1. D
a gas? 2. C
A. Has definite shape and volume. 3. B
B. Has definite volume but no definite 4. B
shape. 5. C
C. No definite shape or volume.
D. Has a definite shape but no
definite volume.
3. Which of the following statements best
describes the motion of gas particles
according to the Kinetic Molecular
Theory?
A. Gas particles are stationary.
B. Gas particles move in straight lines
at a constant speed.
C. Gas particles move randomly and
rapidly in all directions.
D. Gas particles move in circular
paths around each other.
4. Which factor does NOT influence the
average kinetic energy of gas
particles, according to the Kinetic
Molecular Theory?
A. Temperature
B. Volume
C. Mass
D. Speed
5. What happens to the average kinetic
energy of gas particles when the
temperature of the gas increases?
A. It decreases
B. It remains constant
C. It increases
D. It becomes zero
II. Direction: Choose the corresponding
properties of gases from the box.
Mass Pressure Temperature Volume
II.
1. Inflating a ballon with Helium 1. mass
2. Spray bottle 2. pressure
3. Using a bicycle pump to inflate a bike 3. pressure
tire 4. temperature
4. Boiling water on a stove
5. volume
5. Inflating a basketball with air
G. EXTEND
Direction: Answer the following questions. The students will copy the questions.
1. What are the commonly used units for
volume and pressure?
2. Who is Robert Boyle?
3. What is Boyle’s Law?

Prepared by: Checked by:

CHERRY MAE R. REGALARIO ZAIRA MAE V. BORNILLA

BSED-Science IV Science Teacher/T-1