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1. GRADE 8
DAILY LESSON LOG
School
PULO NATIONAL
HIGH SCHOOL
Grade Level
8
Teacher Learning Area SCIENCE
Teaching Dates and Time
December 30-January
03, 2018 Quarter 3rd Quarter (Week #26)
December 30,
2018
December 31, 2018 January 01, 2018 January 02, 2018 January 03, 2018
I. OBJECTIVES MONDAY TUESDAY WEDNESDAY THURSDAY FRIDAY
1. Content Standards The learners demonstrate an understanding of the identity of a substance according to its atomic structure.
2.Performance Standards Make a chart, timeline or multimedia presentation of how the different models have evolved.
3.Learning
Competencies/Objectives
Determine the number of protons, neutrons and electrons in a particular atom. (S8MT – III e – f – 10)
Objectives
Regular Holiday Regular Holiday Regular Holiday
Objectives:
Objectives:
1. Describe Thompson’s Model of the
Atom.
2. Simulate Thompson’s Model of the
Atom.
Objectives:
1. Describe Rutherford’s Model of the Atom.
2. Illustrate Rutherford’s Model of the Atom.
II. CONTENT
Module 2: Atomic Structure
Lesson 16: Thompson’s Model of the
Atom
Module 2: Atomic Structure
Lesson 17: Rutherford’s Model of the Atom
III. LEARNING RESOURCES
A. References
1. Teacher’s Guide Page. 137 – 140 Page. 137 - 140
2. Learner’s Materials page 198 – 199 page 198 - 199
3.Additional Materials from
Learning
Resource (LR) portal
B. Other Learning
Resources
IV. PROCEDURES
A. Elicit From the previous discussion, use
each of the words below in a
sentence.
Ask the students about the following
questions:

2.  Attract
 Repel
 Neutral
Who knows how to play billiard? What will
you do to scatter the ball? How forceful is it
to hit the ball?
B .Engage During one of your visits to SM Mall,
your family decided to take their
snacks at Chowking and ordered a set
of siopao. How do you describe the
siopao?
When the idea of the atom was first
propose by the ancient Greeks , how
do these scientists intend to discover
about the atoms?
Let the students illustrate Rutherford’s
model of the atom based on the preliminary
activity.
What do you think are the chances of the
alpha particle directly hitting the nucleus?
(compare hitting the ball and hitting the
nucleus)
C. Explore
Let the student perform the activity
below.
“Small but terrible”
1. Get the activity box from your
teacher. Write the box number
on your worksheet. Inside the box are
the “mystery object”
which is fixed in place and one
marble. Without opening the
box, guess the shape, size and
location of the mystery
object.
Title of the Activity:“Unmixed Me”
In the class, let the students work in groups.
Tell them to do this activity on the area
assigned to them. Instruct them to write their
output on a piece of manila paper. Follow
the procedure below.
Procedures:
1. Scatter the 20 pieces marble in a circle
on the floor about one foot in diameter.
Imagine these to be the electrons in the
Thompson’s raisinbread model of the atom.
2. As forcefully as you can, slide the rubber
ball to hit the circle of marbles. Imagine the
rubber ball to be the high speed alpha
particle in Rutherford’s experiment.

3. Using the representation of the atoms of the
gold foil, draw the path of the positively
charged alpha particles as they moved
through the atoms.
When all the groups are done with their
activity, let them present it in front of the
class. Make sure that they will answer
guide questions based on their output.
D. Explain 1. Were you able to determine the
size, shape and location of
the mystery object? Draw a picture of
the mystery box.
2. Were you able to infer the size,
shape and location of the
mystery object in the box?
3. How close was your guess? If given
the chance to guess
another mystery object, will you
change your strategy? If yes,
what changes will this be?
4. What made you decide to group
these pictures?
5. What insights did you obtain when
you compare this activity
with the previous one?
6. Can you say that this activity is the
reversed of the previous
activity? Why did you say so?
Guide Questions:
1. When you slide the rubber ball over the
circle of marbles, what did you observe?
2. What happened to the rubber ball as it
hits the circle of marbles?
3. If you repeat what you did with the rubber
ball and the marbles many times, do you
think you will have the same observation
with the previous one?
Facilitate a brief discussion about their
output.
E. Elaborate Explain Thomson’s model of atom
using this picture
Rutherford’s team proposed the Nuclear
Model of Atom using his gold foil experiment
which established the existence of the
nucleus of the atom. He offered the
following rationalizations:
1. An atom consists of a large empty space
is indicated by the ease with which alpha
particles passed through it.

4. .J. Thompson discovered that atoms
have negatively – charged particles
which he called electrons. It led him to
propose a new model for the atom
which he called the plum pudding
model. He proposed that the
negatively – charged electrons were
embedded in a kind of cloud of
positive charge. In the Philippines, the
model is known as raisin bread model.
2. An atom consists of a positive region
which could have been hit by the alpha
particles that deflected.
3. The positive region in an atom that
corresponds to a very small but massive
portion. The very few alpha particles that
bounced back could have directly hit and
were repelled by the positive nucleus of
the atom
F. Evaluate Read the questions carefully. Write
the correct answer on a ¼ sheet of
paper.
1. Thompson proposed that the atom
is a mass of positive
charges with the electrons scattered
throughout it. What do
you call to this model?
a. Plum Pudding Model
b. Alpha – Particle Scattering Model
c. Dalton’s Model of Atom
d. Rutherford’s Model
2. Thompson simulated in his Raisin –
pudding model that the
positive mass is the pudding. How
about the raisins?
a. electrons c. neutrons
b. protons d. nucleus
3. Given the Thompson’s model of an
atom, what can you infer
from the figure?
Multiple Choice Assessment
Direction:Read the questions carefully.
Write the correct answer on a ¼ sheet of
paper.
1. What is in the center of the
Rutherford model?
a. multiple electrons c. neutrons
b. single proto d. nucleus
2. In Rutherford atomic model the alpha
particles were stroked on ________.
a. aluminum b. gold c. silver
d. titanium
3. The particles which were deflected
backwards in
Rutherford's experiments were hit
upon by ______.
a. nucleusc. electrons
b. empty space d. none of
the above
4. In Rutherford's experiment, a thin
gold foil was bombarded with alpha
particles. What happens when a high
speed alpha particle directly hits the

5. Checked by:
MARIA CRISTINA F. LIM Ed.,D.
MASTER TEACHER III/SCIENCE
a. The atom is a mass of positive
charge with electrons scatted
throughout it.
b. It was the same with Dalton’s
model of atom.
c. The model also pertains to matter.
d. The model has something to do
with the chemical combination of
elements.
4. Which of the following scientists
developed the plum –
pudding model of the atom?
a. John Dalton
b. Robert Milikan
c. J.J. Thompson
d. Ernest Rutherford
5. Which of these is the conclusion
from J. J Thomson's
experiment?
a. Electrons travel in a straight line.
b. Electrons emit light.
c. Atoms of some metals do not have
electrons.
d. Atoms of all metals have electrons.
positively charged nucleus?
a. Alpha particles are strongly deflected
since it hits a particle with bigger mass.
b. Alpha particles bounced straight back
from thegold foil.
c. Alpha particles passed through the
foil with little deflection.
d. Alpha particles become embedded in
the foil.
5. Which of these expectations of
Rutherford was based on
J.J Thomson's model before
conducting his own experiment?
a. Alpha particles would break
into smaller particles after striking the
gold foil.
b. Alpha particles would pass
through the gold foil with little or no
deflection.
c. Alpha particles would bounce back
along the same path as they travel to
the gold foil.
d. Alpha particles would embed
themselves as they strike the gold foil.
G. Extend Create a 3D model of Thomson’s
atomic model using any material in
your home.
After learning the lesson, make a collage on
Rutherford’s model of the atom using
indigenous materials.
V. REMARK
VI. REFLECTION