School Baao National High School Grade Level 8

Teacher Loyola, Ma. Cristina B. Learning Area Science

Date March 21, 2023 Quarter 3rd

I. OBJECTIVES
A. Content Standard The learners demonstrate an understanding of:
the particle nature of matter as basis for explaining properties, physical
changes, and structure of substances and mixtures
B. Performance Standard The learners shall be able to:
present creatively how water molecules behave in different stages of the
water cycle.
C. Learning Competency Explain physical changes in terms of atoms of the arrangement and motion
of atoms and molecules; (SSP_S8MT-IIIb-3)

Specific Objectives
At the end of the 50 minutes session, the learners are expected to:
a. explain the process involve in the changes between liquid
and gas
b. describe the examples that show the process of evaporation
and condensation
c. Illustrate what happens to the particles of liquid and gas
when it is heated and then cooled
II. CONTENT Phase Change: Evaporation and Condensation
III. LEARNING
RESOURCES
A. References
1. Teacher’s Guide
2. Learner’s Material Guide Science Learner’s Module 8 pg. 183-185
3. Textbook Pages Science Links Grade 8 pp.223
4. Additional material from Visual aids, Activity sheet, PhET Simulator
learning resources
A. Other Learning Resources L. (2020, August 11). 5.4: Phase Changes. Chemistry LibreTexts.
https://chem.libretexts.org/Courses/Heartland_Community_Co
llege/CHEM_120%3A_Fundamentals_of_Chemistry/
05%3A_Matter_and_Energy/
5.04%3A_Evaporation_and_Condensation

PROCEDURES TEACHER’S ACTIVITY LEARNER’S ACTIVITY

PRELIMINARIES Good day, Everyone!
Good day, Ma’am!
Greetings How are you feeling today?
We’re fine, Ma’am!
That’s good to hear!
1. Prayer Before anything else, let us start our
 class by asking the blessings of the
lord. Angel, kindly lead the prayer.
Let us bow our head and feel the
presence of the lord. In the Name of
the father, and of the son, and of the
holy spirit. Amen.
2. Classroom Class Kindly pick up the pieces of
Management dirt under your chair and arrange it
properly. (The students do the daily routine.)

3. Checking of Let us check the attendance today.

Attendance/Assignment
Did all of you signed to the
attendance sheet?
Yes, Ma’am!
Very good, class!
A. Elicit Before we proceed to our new
lesson, who among you can recall
our previous topic? Yes, Nicole?
Ma’am, our topic last meeting was
all about melting and freezing!
Very good. Our topic last meeting
was all about melting and freezing.
Again, what is melting?
Melting is a phase change of a solid
into a liquid when heat is applied.
Very good! How about freezing?

Freezing is a phase transition where

a liquid turns into a solid when its
temperature is lowered below its
freezing point.
Very good, class! It seems you really
learned something from previous
discussion.
B. Engage Now, before we formally start our
new lesson, I have here two pictures
that you need to analyze.
This is the first picture

What did you observe?

Ma’am the kettle releases vapors.

Very good! How about this
second picture?

Ma’am, there are dew drops on the

blades of the grass.
 Very good!
Presentation of the topic So, based on pictures and from your
observation, what do you think is our
lesson for today? Yes, Raeza
Ma’am, I guess our topic today is all
about Phase Change which includes
evaporation and condensation.
Why do you say so? Because the pictures shows an
examples of evaporation and
condensation

Very good! Our topic today is all

about evaporation and condensation!
Presentation of the objectives To be guided by our discussion, let
me show you first our learning
objectives for today’s discussion.
Who can read the first objective?
Yes, Ken?
a) explain the process involve in
the changes between a liquid
Thank you, how about the second and a gas
objective, Yes Kevin?
b) describe the examples that show
the process of evaporation and
condensation

Thank you, and lastly, who can read? c) Illustrate what happens to the
Yes, Kylle? particles of liquid and gas when
it is heated and then cooled

Thank you!
Unlocking of difficulties To start, let’s unlock the unfamiliar
words you may encounter as we go
along with our discussion. Please
read.

Boiling point- is the temperature at

which the substance transitions from
a liquid to the gaseous phase.
Dew point- is the temperature the air
needs to be cooled to (at constant
pressure) in order to achieve a
relative humidity (RH) of 100%.
C. Explore We will be having an activity, and
you will be with the same group as
yesterday. This activity is entitled
"Let’s Get Physical 3." Assign a
leader, reporter, and secretary to each
group. Leaders, kindly get your
learning activity sheet.
Did I tell you to bring materials for
today’s activity?
 Yes, Ma’am!
Group 1
Materials:

 Piece of cloth
 Hair straightener
 Water
Instructions: EVAPORATION
1. Get a ball of cotton and put
alcohol on it.
2. Plug the hair straightener in.
(Don’t plug the hair straightener
when your hands are wet.)
3. Use a hair straightener and put
heat on the wet cotton.
Group 1, kindly read the following
guide questions:
Guide Questions:
1. What happens to the wet cotton
when you put some heat from the
hair straightener on it?
2. What is the difference between
particles of a liquid and particles of a
gas?
3. In your own words, define
evaporation.
Materials: Group 2

 Plastic cup
 Water
 Ice cubes
Instructions:
1. Put water in a plastic cup and
slowly put an ice in it.
2. Observe what happened from
the outside of the plastic cup

Guide Questions:
Group 2, kindly read the following 1. What happened to the plastic cup
guide questions: with ice in it when you left it after 2
minutes? What makes this happen?
2. What is the difference between
particles of a gas and particles of a
liquid?
3. In your own words, define
condensation
  Never put fingers or other
objects in an outlet.
 Never use anything with a cord
Kindly read the following
or plug around water.
precautionary measures
 Make sure your body especially
your hands dry
 Unplugged from the outlet after
using the equipment.

I will be giving you 10 minutes for

this activity. Please be guided with
the following rubrics.
RUBRICS Excellent (5 Fair (3 Need
points) points) Improvem
ent

(1)

Content the answers Some parts The

from guide of the answers are
questions are answers from not fit or
perfect fit for guide accurate
the topic questions are for the
perfect fit for topic
the topic

Presentati Speaks Speaks Often

on clearly and clearly and mumbles
delicately all delicately or cannot
(100-95%) most (94- be
the time but 85%) the understood
and time and a few
mispronounc mispronounc wards OR
es a few es no more mispronou
words than one nces more
word than

Timelines The activity Activity Activity

s received on received 3 received 5
the due date minutes after minutes
the due date after due
date.

(Students working with their

Please work cooperatively and activity)
quietly.
Your time starts now!
D. Explain Time’s up!
Group 1, reporter please presents
your work.
Group 1
Good morning, everyone! This is our
work.
1. What happens to the wet cotton
when you put some heat from the
hair straightener on it? Where the
water goes?
The wet cotton gets dry after we
apply heat from the hair straightener.
The water vapor so formed becomes
a part of the air and cannot usually
 be seen.
2. What is the difference between
particles of a liquid and particles of a
gas?
Particles in a gas are well separated
with no regular arrangement. While
liquid are close together with no
regular arrangement.
3. In your own words, define
evaporation.
Evaporation happens when a liquid
turns into a gas.

1. What happened to the plastic cup

Very good! Let’s proceed with group
with ice in it when you left it after 2
2.
minutes? What makes this happen?
It produce water droplets on the
outside of plastic cup of cold water.
When warm air hits the cold surface,
it reaches its dew point and
condenses.
2. What is the difference between
particles of a gas and particles of a
liquid?
Particles in liquid are close together
with no regular arrangement.
Particles in a gas are well separated
with no regular arrangement.
3. In your own words, define
condensation
Condensation is the process by
which water vapor in the air is
changed into liquid water.

Yes, Ma’am!

Good job group 2! Let’s clap our

hands for an excellent work! The two phase change are
evaporation and condensation
Did you learn from the activity?
Very good! Based on the activity,
what are the other phase changes you
observe?
 Yes, Veneze?

Very good!
E. Elaborate So now, based from the activity,
What is Evaporation? Yes, Rhianna?
Evaporation, process by which an
element or compound transitions
from its liquid state to its gaseous
state below the temperature at which
When does evaporation happen? it boils

Evaporation happens when a liquid

Very good! Who would like to turns into a gas.
illustrate the particle model in an
evaporation phase? Yes, Christine?

Melting occurs when a solid is

heated and turns to liquid.

Would you like to explain your

illustration?
Energy in the heat form

When a liquid is heated sufficiently

or when the pressure on the liquid is
decreased sufficiently, the forces of
attraction between molecules do not
Can you give me an example of prevent them from moving apart,
evaporation phase? Yes, Ken? and the liquid evaporates to a gas.

The sweat on the outside of a cold

Very good! Any additional example?
glass evaporates when the glass
Yes, Raf?
warms.

Rain puddles “disappear” on a hot

Very good! Can you give another day or when wet clothes dry in the
example? Yes, Nicole? sun.

Very good! Hot tea getting cold.

Drying of wet hair.
Now, who can describe
condensation?

Condensation is the process by

When does condensation happen? which water vapor in the air is
changed into liquid water.

Condensation happens one of two

ways: Either the air is cooled to its
dew point or it becomes so saturated
with water vapor that it cannot hold
Now, who can illustrate the
any more water.
movement and arrangement of
 particles that undergoes
condensation? Yes, Dion?

Very good!
Would you like to explain your Lowering the temperature
illustration?

When gas molecules transfer

their energy to something cooler,
they slow down and their
attractions cause them to bond to
Very good! Can you give me an become a liquid.
example of condensation, Yes
Renzo?
Dew, fog, clouds, and the fog you
see when you breathe out on a
Very good! Any additional example?
Yes, Alia?
cold day.

A foggy mirror and reading

Correct! Can you give me another
glasses fogging up.
example? Yes, Kevin?

Clouds in the Sky.

You are correct! Morning Dew.

Generalization To sum up our lesson, who would

like to share their learning for today?
Yes, Justin?
Evaporation happens when a liquid
turns into a gas. It can be easily
visualized when rain puddles
“disappear” on a hot day or when
wet clothes dry in the sun.
Condensation is the process by
which water vapor in the air is
changed into liquid water. For
example, condensation occurs when
water vapour (gaseous form) in the
air changes into liquid water when it
comes in contact with a cooler
surface.
F. Evaluate I hope you learned something from
our lesson for today.
To test if you gained knowledge for
today’s lesson. Let’s have a short
quiz. Get ¼ sheet of paper.
Instruction: Complete the table
below. (10 points)
Matter Diagram of Melting or
Particle models Freezing
 Foggy mirror

Drying of a
mopped floor
(Answers of the students may vary)
G. Extend Assignment:
1. Give 3 each example of
evaporation and condensation
that you observe inside your
house.
2. Define evaporation and (Answers of the students may vary)
deposition.
Remarks
Prepared by:
Reflection
MA. CRISTINA B. LOYOLA
Student Teacher

Checked by:
MARIETTA B.
GASTILO
Cooperating Teacher
 Learning Activity Sheet
CONDENSATION
Grade and Section: __________________________ Date: ______________
Introduction: A phase change is a physical process in which a substance goes from one phase to
another. Evaporation and condensation are two processes through which matter changes from one state
to another. Matter can exist in three different states: solid, liquid or gas. In evaporation, matter changes
from a liquid to a gas. In condensation, matter changes from a gas to a liquid.
Materials:

 Plastic cup
 Water
 Ice cubes
Instructions:
1. Put water in a plastic cup and slowly put an ice in it.
2. Observe what happened from the outside of the plastic cup
Guide Questions:
1. What happened to the plastic cup with ice in it when you left it after 2 minutes? What makes this
happen?

2. What is the difference between particles of a gas and particles of a liquid?

3. In your own words, define condensation.

RUBRICS
RUBRICS Excellent (5 points) Fair (3 points) Need Improvement
(1)
Content the answers from guide questions are Some parts of the answers from guide The answers are not fit or
perfect fit for the topic questions are perfect fit for the topic accurate for the topic
Presentation Speaks clearly and delicately all (100- Speaks clearly and delicately most (94- Often mumbles or cannot be
95%) the time but and mispronounces 85%) the time and mispronounces no understood a few wards OR
a few words more than one word mispronounces more than

Timeliness The activity received on the due date Activity received 3 minutes after the Activity received 5 minutes
due date after due date.

Leaders:
RUBRICS Excellent (5 Fair (3 Need TOTAL
Reporter: points) points) Improvement
(1)
Secretary: Content
Presentation
Timeliness
Members:
 Learning Activity Sheet
EVAPORATION
Grade and Section: __________________________ Date: ______________
Introduction: A phase change is a physical process in which a substance goes from one phase to
another. Evaporation and condensation are two processes through which matter changes from one state
to another. Matter can exist in three different states: solid, liquid or gas. In evaporation, matter changes
from a liquid to a gas. In condensation, matter changes from a gas to a liquid.
Materials:

 Piece of cloth
 Hair straightener
 Water
Instructions:
1. Get a ball of cotton and put alcohol on it.
2. Plug the hair straightener in. (Don’t plug the hair straightener when your hands are wet.)
3. Use a hair straightener and put heat on the wet cotton.

Guide Questions:
1. What happens to the wet cotton when you put some heat from the hair straightener on it? What makes
this happen?
2. What is the difference between particles of a liquid and particles of a gas?
3. In your own words, define evaporation.

RUBRICS
RUBRICS Excellent (5 points) Fair (3 points) Need Improvement
(1)
Content the answers from guide questions are Some parts of the answers from guide The answers are not fit or
perfect fit for the topic questions are perfect fit for the topic accurate for the topic
Presentation Speaks clearly and delicately all (100- Speaks clearly and delicately most (94- Often mumbles or cannot be
95%) the time but and mispronounces 85%) the time and mispronounces no understood a few wards OR
a few words more than one word mispronounces more than

Timeliness The activity received on the due date Activity received 3 minutes after the Activity received 5 minutes
due date after due date.

Leaders:
RUBRICS Excellent (5 Fair (3 Need TOTAL
Reporter: points) points) Improvement
(1)
Secretary: Content
Presentation
Timeliness
Members: