Scientific Method
#Wayback
Wednesday
Arrange the given
letters to create a word.
Give the definition of
the word created.
OHSEHTPISY
PNITEXEMER
OLNICSUOCN
OMPEBLR
AATD
-educated guess
-an
-a activity
statement
done
to
question
tothat
be
-information
gathered
about the relationship
test
summarizes
a an
hypothesis
the
and
answered/given
from
experiment
between variables
results
gather
of the
data
study
solution
2
#OOTD
At the end of the session,
the students must be
able to:
1. deepen their
understanding of the
Scientific Method.
3
#WARMUP
ACT IT
OUT!
4
Case Analysis
Group Activity #3
He is Sir Alexander Fleming.
He is one of the greatest
scientists who developed the
atibiotic known as Penicillin.
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 Read the the story of how
Alexander Fleming
discovered Penicillin
 Discuss and answer the
question that will be
assigned to your group.
Write your answers on a
manila paper.
7
In 1928, Sir Alexander Fleming was studying
Staphylococcus bacteria growing in culture
dishes. He noticed that a mold called Penicillium
was also growing in some of the dishes. A clear
area existed around the mold because all the
bacteria that had grown in this area died. In the
culture dishes without the mold, no clear areas
were present.
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Fleming hypothesized that the mold must
be producing a chemical that killed the
bacteria. He decided to isolate this substance
and test it to see if it would kill bacteria.
Fleming transferred the mold to a nutrient
broth solution. The solution contained all the
materials the mold needed to grow.
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10
After the mold grew, he removed it from
the nutrient broth and then added the
broth to a culture of bacteria. He
observed that the bacteria in the culture
died. Fleming’s experiments were later
used to develop antibiotics.
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1. State the problem or question that Fleming solved.
2. What was Fleming’s hypothesis?
3. How was the hypothesis tested?
4. What is/are the variables involved in Fleming’s
experiment?
5. Should the hypothesis be accepted or rejected
based on the results of the experiment?
6. Write a statement that summarizes the results of the
experiment.
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13
Criteria
5 points
Cooperation
All members of the group
participated in performing
the activity
Content
The output contained
substantial information,
evidences were analyzed
and correct answers were
obtained.
Presentation
The group presented the
output with confidence and
clarity.
3 points
1 point
2/3 of the members of the
group participated in
performing the activity
Only 1 or 2 members of the
group performed the activity
The output contained
substantial information,
evidences were analyzed but
some answers were
inaccurate.
The group presented the
output with less confidence
and clarity.
The output contained no
substantial insights and
evidences were not
analyzed.
The group was not able to
present the output with
confidence and clarity.
Tell something about
the words to be
flashed. Relate them to
the scientific method.
#FastTalk HYPOTHESIS
PROBLEM
EXPERIMENT
DATA
CONCLUSION
15
Identify the step of the
scientific method reflected in
the following situations. Write
only the letter of the correct
answer.
A. Identify the problem.
B. Formulate a hypothesis.
C. Test the hypothesis.
D. Analyze and gather data.
E. Formulate a conclusion.
1. A student soaked six different kinds of seeds in
water for 24 hours. Then she planted the seeds in
soil at a depth of 1 cm. She used the same amount
of water, light and heat for each kind of seed.
2. Kevin said, “If I grow 5 seedlings in red light,
then the plants will grow faster than the plants
grown in white light.”
3. Dana wanted to know how synthetic fibers
were different from natural fibers.
4. Kim’s experiment showed that chicken egg
shells became stronger if the hen feed to which
extra calcium had been added.
5. Claire wondered if dyes could be taken out of
plant leaves, flowers and stems.
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Thank you for Listening!