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1. Republic of the Philippines
Northwest Samar State University
Brgy. Erenas, San Jorge Samar
Detailed Lesson Plan in Science 4
I. Objectives
* Identify materials that float and sink.
* Describe the kind of materials that float and sink.
II. Subject Matter
Materials That Float and Sink
III. Materials
Marker, Manila Paper, Plastic Bottle with cover, Pencils, Eraser, Metal Spoon, etc.
IV. Procedure
Teacher’s Activity
Prayer
Angel of God...
Amen
Greetings
Good Morning Class!
Checking of Attendance
Who is absent today?
Motivation
Student’s Activity
Angel of God...
Amen
Good Morning Ma’am Derraco!
None Ma’am!
Value: Avoid throwing garbage in the water.

2. Who among you here love to go to the
beach?
What are the things you bring with you
when you are going to swim?
Why do you bring those things?
Do you know how to swim?
What are the things you use in order to
float in the water?
Presentation
Today we will learn about materials that
float and what materials sink in the water.
Are you ready to listen?
First we have to define sink and float.
Sink- means to fall to the bottom of
water
Float- means to stay on top of water.
Discussion
From the box there are different things
that float and sink. Like for example this
empty plastic bottle with cover. If I place
it in the water what do you think will
happen? Will it float? Or sink?
(Students will give various answers)
(Student’s answers may vary)
(Student’s answers may vary)
(Student’s answers may vary)
(Student’s answers may vary)
Yes Ma’am!
(Students are listening)
(Answers may vary)

3. Now let us see what happens to the
plastic bottle.
The plastic bottle float on top of the
water.
A sponge, if placed in the water will it
float? Or sink?
(Present more samples and tell to the
pupils the reason why it float or sink.)
Group Activity
(Group the students into three)
Test some materials and on the table
place a check under Sink if it will sink and
Float if the material will Float.
Name of
Materials
Sink Float
Generalization
Some materials float and some sink in the
water. Why is it so?
Very Good!
Bodies of water such as the sea, lake, falls,
springs and etc. are gifts from God and
sometimes we neglect its beauty by
throwing garbage in it, as we can see
(Answers may vary)
(Students will work as a group. They will
present their work after.)
Some materials float because of their
shape and their weight and some
materials sink because it is too heavy or
the materials absorb water that makes
them sink in the water.

4. there are many garbage floating and
sinking in the water which makes it
polluted.
What should you do as students to
protect the beauty of our nature such as
the sea?
V. Evaluation
Write S if the materials will sink in the
water and F if it will float in the water.
____1. Cotton
____2. Paper
____3. Cellophane
____4. Plastic cup
____5. Rubber band
VI. Assessment
List down 10 materials that Sink and 5
materials that Float.
I should not throw garbage in the water.
Avoid throwing waste in the water.
Prepared By: Mary Belle Lao Derraco
BEED 4-B