Republic of the Philippines
Department of Education
Region VIII (Eastern Visayas)
Division of Leyte
SAN GUILLERMO NATIONAL HIGHSCHOOL
San Guillermo, Palompon, Leyte
Lesson Plan in Science 7
1st Quarter
Date: Sept. 5-9, 2022
Grade 7- Nautilus/Ammonite (11:00-12:00)
I. OBJECTIVE
At the end of the lesson, the students should be able to:
Describe the components of a scientific investigation. (S7MT-Ia-1).
Sub Tasks:
1.
2.
3.
Cite four important components of a scientific investigation.
Describe the different components of a scientific investigation
Distinguish the different components of a scientific investigation in a given story/selection.
II. SUBJECT MATTER
A. Topic: Ways of Acquiring Knowledge and Solving Problems
B. References: Curriculum guide pp. 119
Quipper.com
C. Materials:
 Hard copy or PowerPoint presentation of “Anthony’s Experiment”,
 PowerPoint presentation of “Yunna’s Garden”,
 PowerPoint presentation of Assessment
 Laptop and TV
III. PROCEDURE
A. Preliminary Activities
 Checking of attendance
 Review
 Motivation
Give the right words of the scrambled letters stated below.
1. V T I N E T G A E I
2. P I E N T X M E E
3. C E R S E R A H
4. R E N SW A
5. S G U E S
6. D U T Y S 8. V O S L E
7. B R O S E V E
8. R E Q N I U I
9. Z E N A L Y A
What are these words described as a whole? These are the things that we do in science. We investigate,
make guesses, observe our surroundings, conduct experiments, study things, inquire about different
topics, do some research, solve problems, analyze data and answer questions. All these result in the
discovery of new things and phenomena are the basic science processes used in the study in the activities
that will follow.
1. Activity Students will read the story
Anthony’s Experiment
Ms. Gatdula was invited by a friend to visit her in Baguio City. Before leaving her home in Manila, she
instructed her helper to feed the fish in the aquarium during her absence. It was May. The summer heat
was almost unbearable. The helper was worried about the fish entrusted to her. One very warm
afternoon, she got a tray of ice cubes and put all of them into the aquarium. In just a short while, all the
fish in the aquarium died. Anthony, a nephew of Ms. Gatdula, learned about the tragic incident. But he
did not reprimand the helper right away. He wanted to be sure of the cause of death of the fish. Here is
what he did: He bought six fish of the same kind as those that had died. He kept them in the aquarium
for two days. He got two large wide-mouthed glass jars of the same size. He labeled one “Jar no. 1” and
the other “Jar no. He put the same amount of water in the jars, and three fishes in each jar, together with
some aquarium plants and pebbles. When the fishes have stayed in the jar for two days, he put ice cubes
in Jar no. 1. He observed that the fishes in Jar no. 1 died and those in Jar no. 2 did not.
2. Analysis
1. Who are the main characters in the story?
2. What tragic incident occurred in the story?
3. What did Anthony suspect that might have caused this tragic incident?
4. What did Anthony do in order to prove his suspicion?
5. What did Anthony find out? Is his suspicion correct?
3. Abstraction
A scientific investigation is a series of steps designed to solve problems and answer questions. The story
is an example of a scientific investigation. A scientific investigation has four major components,
namely: Research Problem, Hypothesis, a Method for testing the hypothesis, and a Conclusion based
on evidence. In the story, a research problem presented itself when Ms. Gatdula’s aquarium fish died.
Anthony then made observations and gathered information about the incident, and learned that the
helper has put some ice into the aquarium. From this information, Anthony hypothesized that it must
have been due to the sudden change in temperature of the water because of the ice cubes. Anthony then
came up with a method to test his hypothesis. He conducted an experiment. Then, with the evidences
from his experiment, he was able to draw a conclusion that the death of the fish was in fact due to the
sudden change in temperature of the water following the addition of the ice cubes. His hypothesis was
correct. The four components of an investigation:
a. Research Problem
b. Hypothesis - a possible solution to a problem of a possible explanation of a phenomenon. - an
educated guess.
c. Method for testing hypothesis /Experiment- an activity especially designed to test if a hypothesis is
right or wrong.
d. Conclusion based on evidence- a final decision or judgement formed after a period of careful thought
or research
4. Application
Read carefully the given situation below, then answer the questions that follow:
Yunna’s Garden
Yunna loves plants. She collects a variety of plants especially ones that bear flowers. If her plants are
healthy and green, she’s happy. One day, she visited her grandmother’s house and saw a whole plot of
land filled with flower-bearing plants. She was ecstatic! She saw much more colorful and larger flowers
than the ones in her garden. The leaves also appear crisper and much greener. She saw how dark the
soil is and noticed bits of what looks like dried cow manure in it. It is completely different from her
reddish-brown soil at home. Then, a realization sunk in. Her plants at home are not as healthy as she
originally thought! Answer the following questions:1. What is the research problem? 2. What is your
hypothesis? 3. How would you prove your hypothesis? Present your experiment plan through
diagrams/illustrations with label.
This activity may also be done by group so that the students can present their answers to the class in a
manila paper. Compare different answers and facilitate the class to come up with the best experiment
plan for the investigation
IV. ASSESSMENT
I. Matching Type: Read the story below and match the statement in Column A to its definition in
Column B.
Cako the Monkey
Cako is a wise little monkey who lives with Anne, a young scientist. Anne spends most other time in
her lab doing experiments, while Cako swings around making observations of his own. At present,
Anne is doing experiments on nuts. She left one large nut in a graduated cylinder and ran some quick
errands to the shop. Cako, who just woke up from his afternoon nap, felt hungry and saw the nut. He
wants to take it, and being a wise monkey, he decided he wants to do it without leaving his prints on
the cylinder. He thought, “I need to make the nut float. What could possibly make the nut float? Aha!”
He came up with an idea, but wasn’t sure. “There’s only one way to find out,” he said to himself. He
set-up a small ladder beside the cylinder and carefully climbed, bringing with him a small bucket filled
with water. Slowly, he poured water into the cylinder, and sure enough, the nut floated! He poured
enough water into the cylinder until the nut reached the brim. “Ah, my sweet reward,” Cako thought.
V. ASSIGNMENT
1. Study in advance the Elements of an Experiment.
Prepared by:
JESSA A. LORETO
Teacher I
Checked by:
RONALD E. MACEDA
School Head