1. Science 6
Separating Mixtures through
Winnowing.
Quarter 1 - Week 5 - Day 2
Republic of the Philippines
Department of Education
DIVISION OF GENERAL SANTOS CITY
2. READING HOUSE RULES
1. Respect Others: Treat classmates and teachers with
kindness, respect, and consideration.
2. Be Punctual: Arrive on time for class to avoid
disruptions and make the most of your learning time.
3. Listen and follow instructions: Pay attention when the
teacher is speaking and follow instructions promptly.
4. Raise your hand: Raise your hand to ask a question or
contribute to the discussion. 5. Be participative: Engage
actively in class discussions and activities to enhance your
learning experience.
3. READING HOUSE RULES
5. Be participative: Engage actively in class discussions
and activities to enhance your learning experience.
6. Use Technology Appropriately: Follow guidelines for
using electronic devices in the classroom and use them for
educational purposes.
7. Strictly No Bullying or Harassment: Treat everyone with
kindness and empathy, and report any incidents of
bullying or harassment.
8. Observe CLAYGO: Clean up after yourself and leave
your workspace tidy at the end of each class.
5. REVIEW OF THE PREVIOUS CONCEPT:
What was our previous lesson?
6. Direction: Direction: Choose the letter of the best
answer and write it in your science notebook.
1. What component of mixtures are applicable
for winnowing?
A. dry and large components
B. heavy and light particles
C. liquids that do not mix with each other
D. metallic and non-metallic
PRE-TEST
7. 5. Aling Rosa used to separate the rice grains
from the chaff using the bilao in their barrio.
What technique of separating mixtures she
used?
a. picking
b. filtering
c. sieving
d. winnowing
PRE-TEST
8. 2. Which of the following techniques of
separating mixtures is used to separate lighter
and heavier components of mixture by wind or
by blowing air?
a. picking
b. sieving
c. winnowing
d. filtering.
PRE-TEST
9. 3. Which of the following mixtures can be
separated by winnowing technique?
a. water and oil
b. grain and chaff
c. flour and sugar
d. sand and pebbles
PRE-TEST
10. 4. The density of the husk is __________?
a. is less than grain
b. more than grain
c. equal to grain
d. sometimes less, sometimes more.
PRE-TEST
12. LEARNING OBJECTIVE/S
Objectives:
At the end of the session, learners are expected
to identify mixtures that can be separated through
winnowing and identify the process of separating
mixtures which uses winnowing technique.
13. ACTIVITY # 1 (Explore)
Look closely at the picture of a man separating a
mixture applying the process called winnowing. Answer
the questions that follow.
Activity 1 – Windy Encounter
14. ACTIVITY # 1 (Explore)
Questions:
1. . What do you call the object used by the farmer to
separate the mixture of rice grains and chaff?
2. What factor from the environment helps the farmer
to do his work easily?
3. What occupation in your community uses this
separation technique?
4. How will you describe the weight of the components
that were separated?
5. Can we use this technique inside the house? Why?
15. ACTIVITY # 2 (Explore)
The teacher will divide the class into five
groups. Each group will do the following
activity and will present their output in a
creative way. Each presentation will be scored
based on the rubrics provided.
Activity 2 – To winnow or to sieve?
16. ACTIVITY # 2 (Explore)
Activity 2 – To winnow or to sieve?
CRITERIA At Standard
(3)
Approaching Standard
(2)
Below Standard
(1)
TOTAL
ACCURACY
The content of the
lesson is clearly shown
The team exhibits very
clear ideas on the task
related to their chosen
field.
There are vague ideas
on the context of the
task and their field of
interest.
There are unclear
ideas on the context
of the task given.
CREATIVITY
Resourcefulness of the
group with sense of
uniqueness
It exhibits high value
of creativity and
uniqueness without
compromising all the
contents of their
output.
It shows enough
creativity and
uniqueness
compromising some of
the contents of their
output.
It has low value of
creativity of the group
compromising the
essential contents.
TEAMWORK
Cooperation and
involvement of
members are revealing
All members are
cooperative and took
each part that
contributed to their
success.
Most of the members
show involvement.
Very few members
take part in the
activity.
PRESENTATION
Clear explanation
through presentation
skills
They clearly and fully
explained new
understanding gained
in the activity.
They explained some
things learned in the
activity but not entirely
clear.
They were not able to
explain important
new understanding
gained in the activity.
17. ACTIVITY # 2 (Explore)
Activity Objective: To identify mixtures that can be
separated by winnowing.
Materials:
Container/ plastic cups Plate/ flat container
Sieve/strainer with varied hole sizes Dry sand
Flour Rice grains
Rise husks Sand
Saw dust Small pebbles
18. ACTIVITY # 2 (Explore)
Procedures:
1. Gather materials.
2. Sort separately the materials in different
containers/plastic cup.
3. Discuss among your group your reason for sorting
the objects.
4. Listen as the teacher discusses the difference of
winnowing and sieving and how these methods are
done.
19. ACTIVITY # 2 (Explore)
5. Choose five combinations of the materials and mix
them in a separate container.
6. Try to predict first which method is more appropriate
in separating the mixtures.
Record it as your 1st method in the given table.
7. Perform the method of separation that you predicted
and observe. Take note of the observations.
8. Try another method and observe how the materials
are separated. This will be your 2nd method.
9. Decide which method is more appropriate in
separating the materials by completing the given table
21. ACTIVITY # 2 (Explore)
Guide Questions:
1. Which mixtures did you predict can be separated by
winnowing? Why?
2. Which mixtures did you predict can be separated by
sieving? Why?
3. What properties of materials to be separated are
appropriate for winnowing? Why?
4. What properties of materials to be separated are
appropriate for sieving? Why?
22. Let each group present their outputs in a creative
way. Learners will be scored according to the
rubrics provided.
Group 1- Rap/Singing
Group 2- Newscasting
Group 3- Talk Show
Group 4- Drama
PRESENTATION AND PROCESSING OF LEARNERS’ OUTPUT (EXPLAIN)
23. On the first activity, are you familiar with the scene
in the picture? Some of you probably would say yes, but
for most of the kids in your generation, you seldom see
this activity now. The picture shows a farmer separating
the mixture of grain and chaff (husk of palay or other
seed) by using a device and with the help of the wind.
Winnowing is a technique to separate lighter and heavier
components of mixture by wind or by blowing air
INPUT OF TEACHER
24. The rice grains are placed in a bilao (winnowing fan
or winnower). Then the mixture inside this woven tray is
tossed into the air so that the wind blows away the lighter
chaff and letting the heavy grains fall back into the
winnowing fan. Seems easy but winnowing is a difficult
task. Now you know why it is not done inside the house!
INPUT OF TEACHER
25. Activity 3: Preserving our Winnowing!
Nowadays, technology is anywhere and
everywhere. With today, advancement, some
of our culture like winnowing or using a
bilao to separate rice grains from chaff as a
technique is slowly vanishing, what is the
best way to preserve this technique as a
separating mixture?
APPLICATION (ELABORATE)
26. What technique in separating mixtures you have
learned today?
Winnowing is a technique to separate lighter and
heavier components of mixture by wind or by
blowing air. The rice grains are placed in a bilao
(winnowing fan or winnower).
GENERALIZATION (ELABORATE)
28. Direction: Direction: Choose the letter of the best
answer and write it in your science notebook.
1. What component of mixtures are applicable
for winnowing?
A. dry and large components
B. heavy and light particles
C. liquids that do not mix with each other
D. metallic and non-metallic
POST-TEST (Evaluation)
29. 2. Which of the following techniques of
separating mixtures is used to separate lighter
and heavier components of mixture by wind or
by blowing air?
a. picking
b. sieving
c. winnowing
d. filtering.
POST-TEST
30. 3. Which of the following mixtures can be
separated by winnowing technique?
a. water and oil
b. grain and chaff
c. flour and sugar
d. sand and pebbles
POST-TEST
31. 4. The density of the husk is __________?
a. is less than grain
b. more than grain
c. equal to grain
d. sometimes less, sometimes more.
POST-TEST
32. 5. Aling Rosa used to separate the rice grains
from the chaff using the bilao in their barrio.
What technique of separating mixtures she
used?
a. picking
b. filtering
c. sieving
d. winnowing
POST-TEST
33. ADDITIONAL ACTIVITIES
Give at least 3 benefits of using winnowing as a
technique of separating mixture. Write your
answer on you Science notebook.
34. DEVELOPMENT TEAM
Writer: FADZNUR A. ABDUSALAM
Content Editor:
LR Evaluator: Illustrator:
Creative Arts Designer:
Education Program Supervisor: EDILBERT A. REYES, PH.D.
Education Program Supervisor – Learning Resources: AILEEN A. JAMERO
Curriculum Implementation Division Chief: JULIET F. LASTIMOSA
Asst. Schools Division Superintendent: CARLOS G. SUSARNO, CESE
Schools Division Superintendent: ISAGANI S. DELA CRUZ, CESO V
