School Don Carlos National Grade Level & Grade 7- Science

High Schooll Learning Area

Teacher Vincent C. Class and Time Silver 7:30-8:30 (MTWThF)
Remocaldo Bronze 3:00-4:00 (MTWThF)
Teaching March 13, 2024 Quarter Third (Motion and Dimension)
Date

Topic Heat (Methods on Heat Transfer)

Sub Topic
Time Allotment 60 minutes
Learning Competencies and Objectives
Content Standard:

Learning Infer the conditions necessary for heat transfer to occur

Competency and
Code
Performance
Standard:

Objectives: At the end of the period, the students should be able to:
a. differentiates heat and temperature,
b. illustrate the three methods of heat transfer and;
c. investigate the conditions necessary for heat transfer to take place.

Teacher’s Activities Student’s Activities Materials/Assessment

ELICIT (Recall: 5 minutes) Tools
Good morning, Class!
How was your day? Good morning, Sir!
We’re fine.
What was our topic last
meeting? Sir! last meeting we
discuss about “
LIGHT or the
SOURCE OF
Very Good! LIGHT ”
Speaking of source of
light, who can give me a
short recap about light?
Last meeting, we
discussed about
source of light, we
have the two different
of light the artificial
 source of light and
Very Good! the natural source of
What is artificial source light.
of light?
Kate?
Sir the artificial
source of light can be
How about the natural controlled by human.
source of light?
Sir! natural source of
light cannot be
controlled by human.
It seems that you’ve
already learned our
previous topic.

Any question or
clarification with regards No ’ne sir!
to our previous lesson?

ENGAGE (Get the student’s mind focus on the topic: 5 minutes)

Class I have here set of
questions and all you
must do is to raise your
hand if you want to
answer. Do not answer in
chorus.

What do you think is the

reason why an ice
melt in the glass of
water?
Sir! Because of warm
What do you think is the water
reason why an ice
cream melt in the table?

Sir! Because of the

heat from the
surroundings

Why do we need
umbrellas and
sunglasses Sir! Because of the
during sunny day heat coming from the
? sun.
 What do you think
is the common in this It is heat sir.
picture?

EXPLORE (Provide students with a common experience: 5 minutes)

I guess you are ready for The students will
our class this afternoon. raise their hands)

Who among you enjoys Ma'am, thrice a day

drinking hot coffee? Ma'am, just a day,
How many times do you one in the morning
drink coffee in a day? another in the
evening.
Okay! I have here the
utensils that are used in
making a coffee. A cup,
hot water, and 2 different
spoons that are made of
metal and plastic.
Try to observe and
analyze between the two
spoons with the same
amount of hot water and
at the same time the
same cup.

What do you notice about

the spoon that is placed
in the cup of coffee?
Sir , the spoon gets
hot.
That's right! Since some
spoon are made of metal
and we know that metals
are good conductors of
heat. How about the
spoon that is made up of
plastic? Sir, the plastic spoon
is heat resistant
material and will not
transfer the heat into
the spoon
Very good! plastic
utensils in general are
insulators which means
they are poor conductors
of heat.
EXPLAIN (Teach the concept: 10 minutes)
Let us now begin our
discussion on today's
topic.

Based on some of the

questions I asked you
earlier, what comes to
your mind when you hear Heat is the transfer
the word heat transfer? of thermal energy,
whereas
temperature is the
hotness and
coldness of an
Very good! object.

Heat is just another term

for thermal energy that is
moving.
In the scientific
sense, heat flows any
time there is a difference
in temperature. Heat
transfers naturally from
the warmer object to the
cooler one or from higher
temperature to lower
temperature.

How about temperature,

what is its difference to
heat?

Sir, heat is measured

in joules while
temperature is
measured in Celsius,
Kelvin, Fahrenheit or
Yes, that's right! Rankine.
Any other answers?

Sir, temperature is
measured based oh
the hotness and
coldness of a
substance/ object.
Yes, that's correct!
 Temperature and heat
are related but often
confused since
temperature measures
the random kinetic
energy of a single
molecule or atom or
simply the hotness and
coldness of an object.
Whereas heat is the
movement of thermal
energy from high energy
to lower energy to achieve
thermal equilibrium of an
object.
ELABORATE (Students apply the information learned in the Explain. The teacher will give inputs to deepen the understanding of the students: 25 minutes)
Now class, there are 3
types of heat transfer.
1. Conductor
2. Conduction
3. Radiation .

Can you describe me the

picture presented?
The wooden stick,
plastic fork and metal
spoon were put into a
hot water.

Which among the

material is a 1. conductor
of
heat? (Wooden stick,
plastic fork and metal
spoon)
Sir! metal spoon,
Very Good!
Why is the material a
conductor of heat?

Because most metals

Very Good! are a good heat
2. Conduction is a type conductor.
of heat transfer
through direct contact.
Part of the spoon is
heated by contact with
the hot water. The heat is
transferred through the
metal spoon, particle
by particle, until
the entire spoon is hot.

What about the second

picture?

Which water in the kettle

will go up? It is hot water
or cold water?

Hot water because

heat is being
transferred from fire
to a kettle. The reason
Very Good, when you boil why hot water will
a water, it turns hot and evaporate.
its evaporating. The heat
is transferred from fire to
a
pot. And this process is
called convection.
Where does heat transfer
takes place in the
situation?

It is through the fluid

movement currents.
The hot water
molecules become
less dense and
they rise above the
Fantastic, now who can denser cooler
describe me the last molecules
picture?
Sir!
Melting ice cream as
the sun heats the
Ground.

What causes the ice

cream to melt?

Sir! I think ice cream

melt through the
sun’s heat and
through the warm air.
Correct!

What about the fourth

picture?

Sir! It is the sun heat

Very Good. The third the earth
method of heat transfer
we have the radiation.
3. Radiation is the
fastest way of heat
transfer. Due to this ice
cream get the heat
energy
from the sun which is
required to melt ice
cream

Yes, sir. The factor or

condition that is
necessary for heat
transfer to occur is
that
two object must have
different temperature.
Like what we have
discussed earlier that
 heat always flow or
move from the hotter
object to the cooler
Are we clear about the one
types of heat transfer?

Alright, since we know

already the types of
heat transfer did you
already understand what
is the condition for heat
transfer to occur?

EVALUATE (Assess students learning: 10 minutes)

Directions: Write
Conduction, convection,
or Radiation in the blank
space to show the type of
heat transfer
_________ 1. Heat from
the bonfire warms your
body.

_________ 2. Feeling the

heat of the metal from
your hand

__________3. Warm air

rises and the cool air
sinks.

__________4. Ice melts

because heat moves to
the ice from the air.

__________5. Barefoot
walking on a hot road

EXTEND (Deepen conceptual understanding through use in the new context.)

On a one whole sheet of paper, state the importance of heat
transfer in everyday life and its impact to all living things.

REFERENCES
Teacher’s Guide
Learners’ Material
REMARKS

a. Does it indicate special cases

including but not limited to
continuation of lesson plan to
the following day in case of re-
teaching or lack of time, transfer
of the lesson to the following day
in cases of class suspension,
etc.?
REFLECTION

1. Which teaching technique(s),

strategy(ies), method(s) and
approach(es) are:
a. Effective and why?

b. Ineffective and why not?

2.What difficulties/challenges did
I encounter today and how can I
address or handle them?
3. What help do I need from my
cooperating teacher to address
the difficulties/challenges I
encountered?

Prepared by: Checked by:

VINCENT C. REMOCALDO MRS. DULCE AMOR M. MARIBAO
Pre-Service Teacher Cooperating Teacher