School MARFIL NATIONAL HIGH SCHOOL Grade Level 9

Teacher GENER E. RODRIGUEZ Learning Area SCIENCE

Teaching Date JANUARY 15, 2019 Quarter 3RD

I. OBJECTIVES
The Learners demonstrate an understanding of:
A. Content Standard
volcanoes found in the Philippines
The Learners should be able to:
B. Performance Standards participate in activities that reduce risks and lessen effects of
climate change
C. Learning Competencies/ The Learners should be able to:
Objectives explain what happens when volcanoes erupt
Write the LC code for each (S9ES -IIIb28)
II. CONTENT Volcanic Eruption

III. LEARNING RESOURCES

A. Reference
1. Teacher’s Guide
2. Learner’s Material pp. 173-178
3. Textbook pages
4. Additional materials from
slideshare.net/surbhishreemali/volcanic –eruption-53648514
Learning Resource (LR) portal
B. Other Learning Resources Computer, Projector, Muriatic Acid, Baking Soda and Gravel

IV. PROCEDURE
Preliminary activities:
 Prayer
A. Reviewing yesterday’s lesson or  Checking of Attendance
Presenting the new lesson
 Setting of Standards
1. What will you do when there is group activity?
(expected answers: participate)
2. What about when someone is talking in front?
B. Establishing a purpose for the (listen and do not make unnecessary noise)
Lesson
 Review of the previous lesson.
1. What is volcano?

C. Presenting examples/instances
2. Differentiate Active from Inactive volcano?
of the new lesson 3. How does magma
4. Identify the external parts volcano.

The teacher will asked if there are further questions or

clarifications regarding the previous lesson. If none,
proceed to the new lesson.

ENGAGE
4 Pics 2 words

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 Try to guess the words from the photos and if you know
the answer just raise your right hand and wait till I
recognize you to.

(VOLCANIC ERUPTION)

Very Good! This day our lesson will be about Volcanic

eruption.

Do you have any idea what volcanic eruption is?

(students answer might be Yes)

Do you want to know deeper about volcanic eruption?

(expected answer is Yes)

EXPLORE

This time we will have a group activity. We will just

D. Discussing new concepts and stick to the groups that we had from the last activity.
practicing
 New skills # 1 For this activity each group will be assign to a center
located at the corners of the classroom. Namely: Reading
Center, Art Center, Manipulative Center and Computer
E. Discussing new concepts and Center.
practicing
 For group 1 they will be assigned to Reading Center
 New skills # 2
where you will read all the information related to the
lesson Volcanic Eruption.
 While Group 2 will be in Art Center where you will
do the activity entitled “In and Out”
(see activity sheets attached).
 Group 3 will be in Manipulative Center where you
will demonstrate a volcanic eruption.
Remember to be careful in doing your activity
because you are dealing with chemicals it can
cause burns, eye damage or other injury.

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 (see activity sheets attached).
 Group 4 will be in Computer Center, where you will
watch video clips when there is volcanic eruption.
And will present the activity posted in your center.
(students will simulate a scenario when there is
volcanic eruption)

You will be given 10 minutes to do the activities.

Afterwards a representative/s will report and present your
activity. Your group will be graded base on the following
criteria:
 Accuracy- 35%
 Mastery- 25%
 Group participation - 20%
 Visual Presentation-20%

Total: 100 %

Remember we will have group activity so I am

expecting that all of you will follow what we had agreed
before started our class. The group who fail to follow will
be deducted 10 points. Also while the activity is going on I
will monitor each center if members of the groups are
participating.

EXPLAIN

Time is up!

This time we will do the presentation of your outputs.

F. Developing mastery

Let us welcome the Group 1.

(students will report types of volcanic eruption)

Very good presenter/s and Thank you. Let’s give them a

Mommy Dionisia Clap.
G. Finding practical applications
of concepts and skills in daily living (the students will do Mommy Dionisia Clap)
This time let us have Group 2.
(presentation of different appearance of cones and
measurement of its slope)

Good job group 2, let’s give them an WOW clap.

(the students will do WOW clap)
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 Now, it’s your turn group 3.
(presentation of Volcanic eruption)

Nice presentation, let’s give group 3 a fireworks clap.

(the students will do fireworks clap)

H. Making generalizations and

abstractions about the lesson ELABORATE

Thank you for all of your participation.

I will now give the score of each group.

Why do volcanic eruption occur?

- this happen hot materials (lava and gas) from the Earth’s
interior are discharged or thrown out of a volcano.

 Volcanoes erupt differently and generally classified

as wet or dry, depending on the amount of magma’s
water content. Volcanoes are described according
to the style of eruption as follows: Phreatic or
hydrothermal, Phreatomagmatic, Strombolian,
Vulcanian and Plinian.
Although volcanologists have different basis for classifying
volcanoes, one way to classify volcanoes is by their cones.
namely: shield, cinder, and composite cones.
 Shield volcanoes are formed by the accumulation of
lava that oozes out from the volcano. Since non-
viscous lava can flow freely, a broad, slightly domed
structure that resembles a warrior’s shield is formed
like the Mauna Loa in Hawaii.
 Cinder cones, on the other hand, are built from
ejected lava fragments. They have a steep slope,
wide crater and are the most abundant of the three
major volcano types. One example of this type is
the Paricutin in Mexico.

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  Composite cones or stratovolcanoes are large,
nearly perfect sloped structure formed from
alternate solidification of both lava and pyroclastic
deposits. One perfect example of this type of cone
is our Mayon Volcano.

How does volcanic eruption affect people lives?

(expected answer it can cause loss of lives, destruction of
property including also agricultural crops)
Yes those are correct. Indeed Volcanic eruption
 Can loss thousands of lives just like what happened
in Pompeii City when Mount Vesuvius erupted
20,000 people died
 Hot ash and poisonous gases that are ejected
 Effects on the Environment

Although there are a lot of negative effects, but volcanic

Eruption also have positive effect people like the eruption.
1. Fertile Soils: Volcanic soils are very fertile. These rich
soils are called laterite soils and are rich in minerals. They
are common in many countries such as Brazil, where
coffee is grown, and parts of Southern Italy, where fruit
and vegetables are grown. Also the Musuan Volcano in
Bukidnon after its eruption in 1867 it produced very rich
soils for farming years.
2. Tourism: Many dormant and active volcanoes attract
hundreds of thousands of tourists each year. Mount
Vesuvius in Southern Italy and Mount Etna in Sicily are
very popular. Tourists flock to these to climb the sides and
to experience the landscape. This leads to many spin-off
industries such as bus companies, restaurants, shops and
hotels. This generates a lot of employment. In the case of
Mount Vesuvius, nearby locations such as Pompeii,
destroyed in 79 AD by the violent eruption of Vesuvius,
also attract tourists.
3. Geothermal Energy. According to the Department of
Energy, 14.4% of the country’s total power generation is
produced from geothermal energy. The production of
electricity from geothermal energy is cheaper than the
electricity production using natural gas, coal, and
hydropower. Geothermal power plants are used to
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 generate electricity in Tiwi (Albay), Kidapawan (North
Cotabato), Calaca (Laguna), Tongonan (Leyte), Bago City
(Negros Occidental), Valencia (Negros Oriental), and
Bacon (Sorsogon). The figure 14 below shows the Mak-
Ban Geothermal Power Plant in Laguna.
4. Earthenware can also be created just like what the
people in Zambales when Mount Pinatubo erupted.
5. Creation of new land: Volcanoes can create new land
for human habitation.
6. Building materials: Granite, which is used in the
construction industry, is formed by volcanic activity.

We know that Philippines is a home of volcanoes because

we are located in the ring of fire. What if there would be
such volcanic eruption? What shall we do?
Remember: “Sa Panahon ng disaster ligtas ang may
alam.”
Therefore we must prepare and do the following in case
there will be volcanic eruption.
BEFORE
 Build an emergency Supply Kit
 Make a Family Energy Plan
DURING
 Follow the evacuation order
 Be aware of mudflows
 Avoid river valleys and low lying areas
 Remember to help your neighbors
AFTER
 Go to designated public shelter
 Listen to radio or check internet often if become
available
I. Evaluating learning
EVALUATE

You are a volcanologist from Batangas. On your way

back to your hometown, you saw the destruction brought
about by the eruption of Taal Volcano. You decided to
invite your colleagues to come with you on your next visit
with a mission, that is, to create awareness among your
town mates about volcanic hazards – before, during, and
after a volcanic eruption. Decide on how you will
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 accomplish your mission.

Your presentation will be rated based on the following

criteria:

Details and information – 40%

Method of presentation – 30%
Techniques/creativity – 15%
Accuracy – 15%

Total: 100 %
J. Additional activities for
application or remediation
V. REFLECTION
A. No. of learners who earned 80% on
the formative assessment.
B. No. of learners who require
additional activities for
remediation.
C. Did the remedial lessons work? No.
of learners who have caught up with the
lesson.
D. No. of learners who continue to
require remediation.
E. Which of my teaching strategies
worked well? Why did these work?
F. What difficulties did I encounter
which my principal or supervisor can
help me solve?
G. What innovation or localized
materials did I use/discover
which I wish to share with other
teachers?

Prepared by:

GENER E. RODRIGUEZ
SST-I

Checked and Noted by:

RICHARD A. TADLE
School Head

ART CENTER
Activity 1. In and out

Objective:
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  relate the volcano’s slope to its material emissions

Materials:
two ¾ cups of cornstarch
two ¼ cups of water
1 cup gravel
3 cardboard pieces
three 250 ml paper cups stirrer (any wooden stick)
ruler protractor

Procedure:
1. Make a data table like the one shown below:

Cone Drawing of Cone Degrees of Cone

1. Cornstarch
2. Gravel
3. Mixed

2. Mix about 3/4 cup of cornstarch with 1/4 cup of water in a paper cup. Stir the mixture well until it
thickens.
3. Pour the mixture on a piece of cardboard from a height of 2-3 cm. Write “cone A” on the cardboard
and set it aside. 4. Fill another cup with gravel. Pour the gravel slowly on the second piece of
cardboard from a height of about 10 cm. Label this model “cone B” and set it aside.
5. In a cup, mix the rest of the cornstarch with the rest of the water. Fill the other paper cup with
gravel. Pour a small amount of the cornstarch mixture on the third piece of cardboard, then pour
some gravel on top. Repeat until all the cornstarch mixture and gravel have been used. Label this
model “cone C” and set it aside until the mixtures in both cone A and cone C have hardened (about
20 min).
6. Draw the cone of volcanoes A, B and C.
7. Use the protractor to measure the approximate slope of each cone. You can measure the slope
from the base as shown below. Enter the data in Table 2.

Q1. Compare the appearances of the cones.

Q2. Which volcano has the greatest slope? Which has the least slope?
Q3. Explain how the type of material extruded from a volcano affects the shape of its cone.
Q4. In what way does the formation of a volcanic cone model differ from a real volcano?

How will you describe the slope of Pinatubo Volcano? Infer the type of materials from which it was
formed.

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MANIPULATIVE CENTER

Activity 1: How strong am I

Objective:

 create a volcanic eruption

Materials:

Baking Soda

Muriatic acid

Cardboard

Procedure:

1. Using the baking soda on the piece of cardboard and create a mini volcano.

2. Create a hole at the top of your volcano this will serve as your crater.

3. Pour 3-5 cups of Muriatic Acid in hole you created.

Please be careful in using this chemical it can cause severe burns, eye damage or other injury.

4. Observe what happened.