1. The document describes activities for students to learn about colloids through experiments mixing cornstarch and water. It involves observing the properties of the mixtures and determining if they behave as solids or liquids. 2. Students then make colloidal gelatin and discuss the substances used to form colloids. 3. The importance of colloids to humans and the environment is evaluated. Students also prepare food mixtures and present different mixtures found in cooking.

1. 1ST QUARTER
WEEK 3

2. DAY 1
Describe the
characteristics and
uses of simple colloids

3. Identify if the following is homogeneous or
heterogeneous mixture.
1. 2.
3. 4.
Review.

4. Question of the day:
Gelatin is said to be a
mixture. What kind of
mixture is it?

5. What is common among
these pictures?

6. Activity 3.1
CRAZY COLLOID
MATERIALS:
Cornstarch (1 box or 454g) Water
Mixing Bowl Spoon
Hammer Aluminum foils
Plastic cups Ziplock sandwich bags
Waxed paper Clothes pin
Candle
PROCEDURES:
1. Each group will mix the cornstarch and water.
Observe the appearance of the mixture.
2. Review the properties of solids and liquids

7. PROCEDURES:
1. Each group will mix the cornstarch and water. Observe the appearance of the mixture.
2. Review the properties of solids and liquids
3. Perform the nine tests and tell whether it exhibits solid or liquid property/ies.

8. ACTIVITY TIME
Guide Questions:
1. Which of the tests showed this
mixture to be a liquid?
2. Which of the tests showed the
mixture to be a solid?

9. Based on the activity,
how can you
characterize the
properties of colloids?

10. A colloid is a mixture that exhibits
both properties of liquid and solid.
Colloidal particles do not settle but
remain dispersed throughout the
medium. Colloid comes from the
Greek word kolla which means glue.
Familiar colloids are rubber, plastics,
synthetic fibers, gelatin and foams.

11. DAY 2
Prepare useful colloids and give its
importance

12. REVIEW. What words is being
described by scrambled
letters.
1. XMITRUSE,
2.EHTEROSENOEUG
3. AGLITEN
4. OCLOILD

13. Question of the day:
How can we
make a colloid?

14. MATERIALS:
3 bar/box/pack plain gelatin 9
tablespoons or 75 ml water
3-5 drops food color
Plastic lid with a rim
Saucepan
Paper towels
Cookie cutters Drinking straw
Scissors

15. PROCEDURES:
1. Mix the water and food
coloring in the saucepan and put
over low heat. 2. Stir in the 3
packs of unflavored gelatin to
dissolve. Cook and stir for 30
seconds or until thickened.

16. 3. Pour the mixture into the
plastic lid with a rim, push the air
bubbles out with a spoon or
other utensil, and let the gelatin
cool on the counter for 45
minutes.
4. Remove the gelatin from the
lid. It should be flexible and
pliable.

17. 5. Use the cookie cutters to
make interesting shapes.
Leftover scraps also make
interesting pieces! Scissors
may be used to make spirals
or other designs. Use a
plastic drinking straw to make
holes for hanging pieces.

18. 6. Shapes may be dried flat
on a cookie sheet or cooling
rack. Spirals may be hung by
clothespins. Shapes with
holes may be strung on a
string to dry. The gelatin will
be hard like plastic in 2-3
days.

19. Guide Questions: Based
on the activity, what are
the substances mixed to
form colloids?

20. GENERALIZATION: Write
inside the gelatin the
concept of the lesson

21. EVALUATION:
What is the importance
of colloid to us and our
environment?

22. DAY 3-4
Prepare beneficial
and useful
mixtures in food
preparation

23. REVIEW:
What things you
remember when you
hear the word
“MIXTURE”?

24. Question of the day:
What are the
mixtures found in
food preparation?

25. ACTIVITY 3.3
Catering for the PARTY!
1.Each group will
prepare food and show
how they are
combined.

26. GROUP PRESENTATION.

27. DAY 5
SUMMATIVE TEST

28. Mixtures Poster Making
1. Create a poster that
shows what you have
learned about mixtures.

29. Rate the poster through
rubrics.