1. DETAILED LESSON PLAN IN CHEMISTRY
I. OBJECTIVES:
At the end of the lesson, the students should be able to:
A. Discuss the difference between physical and chemical change;
B. Appreciate the importance of the knowledge on physical and chemical
change in our life through citing its applications in our community; and
C. Write at least 5 examples of chemical and physical changes of matter.
II. SUBJECT MATTER:
A. Topic: Changes of Matter
B. Materials and References:
*Candle, matchstick, paper, pentel pen, Manila paper,
*Visual Aids – Graphic Organizers
*http://chemistry.tutorvista.com/physical-chemistry/physical-and-
chemical-changes.html
*http://www.kentchemistry.com/links/matter/physicalchemicalchange
s.htm
C. Science Concepts:
Physical Change- is a change which occurs in size, shape, color, texture,
state, magnetic or electrical condition but the molecular composition
remains totally unaltered.
Chemical Change- a change during which the molecular composition gets
totally altered, that is change in which a new product is always formed.
D. Process Skills:
Defining, Differentiating, Appreciating, Observing, Critical Thinking
E. Value Integration:
Inquisitive mind and cooperation during the teaching-learning process
F. Teaching Strategies:
Inquiry Approach, Discussion, Audio Visual Presentation

2. III. DEVELOPMENTAL TASK:
Teacher’s Activity
Teacher’s Activity
Prayer
Greeting
Checking of Attendance
A. Review
Last meeting, we learned
about matter and its
classification.
So as a sort of review, what is
matter?
Very good!
What are the three
classification of matter?
Correct!
What is the difference
between solid and liquid?
Very good!
What is the difference
between solid and gas?
Very true!
Now, how can we distinguish
that a matter is a gas?
Exactly!
Student’s Activity
Matter is anything that occupies
space and has mass.
The three classification of matter
are solid, liquid and gas.
The difference between solid and
liquid is that Solid has a definite
shape and volume while Liquid has
a definite volume and assumes the
shape of the container.
The difference between solid and
gas is that Solid has a definite shape
and volume while Gas has no
definite shape.
We can distinguish that the matter
is a gas by its particles due to that
the particles of gases are far from
each other.

3. So, is there any question
regarding our previous lesson?
B. Motivation
Class, I have here a piece of
paper and a candle with a
matchstick. All you have to do
is to tear the paper into small
pieces and burn the candle
through a matchstick. I need
two volunteers from the class.
After you had performed the
activity, try to explain what
happened to the piece of
paper and to the candle.
Those who are on their sits,
try to observe your
classmate’s work.
C. Presentation
This afternoon, we are going
to relate what you have
observed from your
classmate’s work.
Based from the activity that
your classmates have done,
what will be our topic for this
afternoon?
Very good!
This afternoon, we are going
to discuss the two changes of
matter – the physical and
chemical change.
1. Discussion
Class, do you have any idea
what physical change is?
You have the idea!
None, Sir.
(The students volunteer to do the
activity)
Changes of Matter, Sir.
Physical change is a change in the
form of matter but not in its
identity.

4. Another, yes Gener?
Very good!
How about chemical change?
Definitely!
Class, I have here a melting ice
and a dissolved sugar in water.
What changes are taking place
in these two examples?
How can you say that these
two examples undergo
physical change?
Exactly!
I also have here another
example – a rusting nail and a
spoiling food. What changes
do these two examples
undergo?
Why these two examples
undergo chemical change?
Very Good!
Now, who can compare
physical from chemical
change?
Physical Change is a change which
occurs in size, shape, color, texture,
state, magnetic or electrical
condition but the molecular
composition remains totally
unaltered.
Chemical change is a change in
which one kind of matter is
changed into a different type of
matter.
Physical change is taking place in
those examples, Sir.
The two examples undergo physical
change due to that it remains the
same and there is no new product
that is being formed.
The two examples undergo
chemical change, Sir.
Those two examples undergo
chemical change because there is a
change in its chemical properties,
Sir.
Physical change is a change in an
object’s physical properties such as

5. Absolutely!
Is there any question
regarding our topic for this
afternoon?
2. Activity Proper
Class, we will have an activity
in relation to our topic for this
afternoon. I will divide the
class into two groups. Those
who are sitting on the left side
will be the group 1 and those
on the right side will be the
group 2. You select a leader, a
secretary and reporter. Your
group leader will get your
materials in for the activity.
Afterwards, discuss your work
to the class.
(Activity sheets are attached
at the back)
3. Post Activity
(Students discuss their work
on the board)
IV. GENERALIZATION
Based on the activity that you
had performed, who can now
discuss the difference
between physical and
chemical change?
size, shape, color, texture, state,
etc. while Chemical change is a
change in which a new product is
formed.
None, Sir.
Physical change is a change in an
object’s physical properties such as
size, shape, color, texture, state,
magnetic or electrical condition but
the molecular composition remains
totally unaltered. Some examples
of physical change are breaking of a
glass, separating sand from gravel,
and cutting woods. On the other
hand, chemical change is a change
during which the molecular

6. Who among you here can give
other examples of physical
and chemical changes of
matter that are happening in
your community?
Therefore, how important is
these physical and chemical
changes of matter into our
community?
V. EVALUATION: ½ Crosswise
Direction: Do what is
indicated.
1. What is a physical change?
Give at least 5 examples.
2. What is a chemical change?
Give at least 5 examples.
3. Differentiate chemical from
physical change.
composition gets totally altered,
that is change in which a new
product is always formed. Some
examples of chemical change are
digesting foods, frying an egg, and
burning of leaves.
There are some of the physical and
chemical changes in our
environment. These are as follows:
a rusting bicycle, bleaching your
hair, hammering wood together to
build a house, combustion of fuel,
heating of zinc oxide and freezing
of water.
These are really important due to
that we apply these physical and
chemical changes in our daily living.

7. VI. ASSIGNMENT: ½ Crosswise
Research on the phase
changes of matter and
differentiate one from the
other.
Reference: Amelia, Rina C.
Science and Technology III,
p.96-98

8. NORTHERN NEGROS STATE COLLEGE OF SCIENCE AND TECHNOLOGY
OLD SAGAY, SAGAY CITY
A FINAL
REQUIREMENT
IN PRINCIPLES OF
TEACHING 2
(DETAILED LESSON PLAN)
SUBMITTED BY:
ARJEL A. DIONGSON BSEDII-A
SUBMITTED TO:
PROFESSOR DONNA FE TOLEDO

9. ACTIVITY SHEET
Objectives:
To distinguish physical from chemical change
Materials:
2 pentel pen
Manila paper
2 envelope
Group 1
Procedure:
1. Identify changes of matter as either physical or chemical change.
2. Write a happy face ( ) if it is a physical change and a sad face if it is a chemical
change. Put your answers on the blank space provided before the number.
3. Count the happy and sad faces then discuss why it is a physical or a chemical change.
____1. Fireworks exploding
____ 2. Pouring milk on your oatmeal
____ 3. Whipping a cream
____ 4. Melting ice cream
____ 5. Freezing chocolate covered bananas
____ 6. Bleaching your hair
____ 7. Corroding a metal
____8. Separating sand from gravel
____ 9. Melting butter for pop corn
____ 10. Burning toast
Group 2
Procedure:
1. Identify changes of matter as either physical or chemical change.
2. Write a happy face ( ) if it is a physical change and a sad face if it is a chemical
change. Put your answers on the blank space provided before the number.
3. Count the happy and sad faces then discuss why it is a physical or a chemical change.
____ 1. Breaking a glass
____ 2. Making salt water to gargle with
____ 3. Digesting food
____ 4. Setting your shoe on fire
____ 5. Burning of magnesium metal
____ 6. Boiling of water
____ 7. Heating of Camphor
____ 8. Cutting of wood
____ 9. Heating of Ammonium chloride
____ 10. Dissolution of sulfur in carbon disulphide