Science Grade 6 Quarter 1

1. Common Household
Colloids and Their
Uses.

2. ToKnow
In this lesson, you will identify the common
household colloids and their uses. Colloids have
very important application in our daily life starting from
food products to the medicines to industries.
After going through this module, you are expected to:
1.decide whether the substances are colloids or not.
2.identify common household colloids.
3.describe the uses of household colloids.

3. Tell if the following mixtures are colloids or not. Put a
check () if the mixture is a colloid and cross (  ) if it is
NOT.
StartHere
_____ a glass of milk
_____ a bottle of antibiotics
_____ cheese
_____ flour dissolved
in a glass of water
_____ orange juice
_____ mayonnaise
_____ paint
_____ sugar dissolved
in a glass of water
_____ honey
_____ soft drinks

4. WordHunt
Arrange each set of letters to form the correct
word. Use the clues as your guide.
____________________ 1. L O I C L D O
- a mixture in which the particles of a substance are
evenly distributed throughout the substance
____________________ 2. A M O F S
- colloids which consist of gas dispersed liquid foams or
solid foams
____________________ 3. E S R E P S I D
- result of spreading substances in a mixture
____________________ 4. S L U M E N I O S
- is a mixture of two or more liquids that are normally
immiscible (unmixable or unblendable)
____________________ 5. E R O S A L S O
- is a suspension of fine solid particles or liquid droplets
in air or another gas

5. LookUp
Colloids are common in everyday life. Some examples include
whipped cream, mayonnaise, milk, butter, gelatin, jelly, muddy
water, plaster, colored glass, and paper. Every colloid consists of two
parts: colloidal particles and the dispersing medium.
Colloid is a special kind of mixture that contains very tiny
particles that cannot be seen by the unaided eye. The tiny particles
do not settle down. Instead, they move rapidly and collide with or
bump each other. This motion of the tiny particles is called
Brownian motion. In adding a powdered milk to a glass of warm
water, you can form a cloudy mixture but the milk particles do not
settle down. The milk that you drink everyday is called colloid.
There are different types of colloids depending on the dispersed
phase and the dispersed medium that can be found at home. These
are the common names of colloids at home solid sols, gels, solid
foams, liquid sols, emulsions, liquid foams, and aerosols.

6. When the dispersed phase and
the dispersed medium are both
solids. Colloids are called solid
sols. Examples of solid sols are
gemstones, pearls, and other
colored glass like stained glass
Gems are precious stones
made as pendants of necklaces
and other pieces of jewelry.
Pearls are also made into
earrings and necklaces.
Colored glasses are commonly
used as decorations in walls or
ceilings of buildings and
houses.
Gems, pearls, and colored glasses are solid sols.

7. If solids are dispersed in
liquid medium, colloids called
liquid sols are formed.
Paints have both protective
and decorative functions.
Pigmented inks, and glues
are can be used at home, in
offices and printing press.
Shampoo, liquid body
soap, and body lotion used
for taking a bath. Fabric
conditioner, and liquid
detergent used for doing
laundry.
Paints
Pigmented ink shampoo fabric
conditioner

8. Aerosols are suspensions of liquid
or solid particles in a gas. Clouds and
fog are natural aerosols, which consist
of water droplets dispersed in air.
Dusty air and smoke are aerosols, too.
Insecticides are used in farming.
Artificial aerosols are not
environment-friendly like perfume
spray, and spray paint are artificial
aerosols that can be found at home.
These products contain
chlorofluorocarbons (CFCs) which act
as propellants. Experts say the CFCs,
destroy the ozone layer, the layer that
protects the earth from the ultraviolet
rays of the sun.
insecticides
perfume spray spray paint

9. Gels are colloids which consist of liquid dispersed in
solid. Your favorite gelatin, jellies, and jam desserts
are gel. Shoe polish is also a kind of gel. Silica gel is
placed in small packages in packets of medicines
and vitamin pills to keep them dry.
silica gelsshoe polish jellies

10. An emulsion is a
liquid dispersed in either
a liquid or solid.
Examples of emulsions
are milk, butter,
mayonnaise as
ingredients of your food.
Cod liver oil is a type
of fish oil supplement
which are linked to many
health benefits. Most
ointments and creams
used in medicines and
cosmetics.
mayonnaise
milk
ointmets

11. Foams are colloids
which consist of gas
dispersed in liquid (liquid
foams) or solid (solid
foams). Whipped cream,
froth on a glass on a beer,
and soap lather are liquid
foams. Styrofoam that are
used in packaging material
is an example of solid
foams. Icing on a cake are
solid foams also.
whipped cream
froth on coffee milk styrofoam

12. Common Household Colloids
Common Household Colloids Uses
gems and pearls, colored glasses used as jewelries or house
decorations
butter, cheese, gelatin, jelly,
jam, mayonnaise, milk, gelatin,
whipped cream
used as ingredients for preparing
food
styrofoam used as packaging material
pigmented inks, glues used for printing and other art and
crafts
paints used both for protective and
decorative functions
cod liver oil, ointments, and used in medicines and cosmetics

13. Tryit
Activity 1: Choose the answer inside the box on the
right. Write the letter only.
____________ 1. Decoration for cakes
and cup cakes
__________ 2. Substitute for oil in
cooking
__________ 3. Used for salad
dressing
__________ 4. Ideal for sandwiches
__________ 5. Prevents metals from
rusting
•paint
•cheese
•butter
•mayonnaise
•whipped
cream
• toothpaste

14. Activity 2: Write at least one example of common
household colloids in each type and give their uses.

15. MoveOn
Your teacher in Home Economics tasks you to
produce mixtures that you can sell during the food sale
on the school's forthcoming Foundation Day. Prepare a
menu for the event wherein your menu should include
mixtures suited for hot summer days, such as fruit
salad, buko pandan, halo-halo, and fruit shake. Then,
List down the ingredients needed to prepare each
mixture in the menu. Choose one mixture from your
menu and then demonstrate to the class how the
mixture is prepared. As you demonstrate, name the
different ingredients that you mixed to produce your
preferred mixture.

16. SpeedUp
1. Which description best describes colloids?
a. Size of the substance in the dispersed phase is between
those in a solution and a suspension.
b. Mixtures of two or more substances than can be easily
separated
c. Formed by mixing different kinds of solutions
d. Have molecules that are big enough to settle at the
bottom
A. Describe the appearance and uses of the colloids.
Encircle the letter of the correct answer.

17. 2. Which of the following is the best description of
colloids?
a. Sticky, creamy substance
b. Clear, pure substance
c. Dark, black substance
d. Clear, flawless substance
3. The following colloids are used for food preparation
except ______.
a. gelatin b. silica gel
c. milk d. whipped cream

18. 4. Which colloid has both protective and
decorative function?
a. ink b. insecticide spray
c. paint d. creams
5. The following are emulsions EXCEPT
________.
a. butter b. facial cream
c. mayonnaise d. soap lather

19. B. Read the paragraph and do the activity below.
You and your mother brought the following items from the
supermarket: mayonnaise, butter, red sugar, milk, oil, salt,
detergent powder, shampoo, canned goods, dishwashing
liquid, toothpaste, vinegar, soy sauce, olive oil, and ketchup.
Select five (5) items that are colloids and describe its uses.
Write your answers on the table below:
Colloid Items Uses

20. SumUp
1. A colloid is a special kind of mixture that contains very tiny
particles that cannot be seen by the unaided eye. It is a mixture of a
dispersed phase (the solute in a solution) and a dispersed medium
(the solvent in a solution).
2. There are different types of colloids depending on the dispersed
phase and the dispersed medium. These are the solid sols, gels,
solid foams, liquid sols, emulsion, liquid foams, and aerosols.
3. There are common household colloids that are useful in our every
day lives. People use colloids in different ways. Colloids such as
milk, butter, gelatin, jelly, and whipped cream become ingredients of
the food you eat.

21. 4. Some colloids can be used as jewelries or
house decorations such as gems, pearls, and
colored glasses.
5. Styrofoam can be used as packaging material.
Pigmented inks and glues can be used for
printing and other arts and crafts. Paints can be
used both for protective and decorative
functions.
6. Others are used in medicines, cosmetics, and
for personal hygiene.

22. DoatHome
Write on the table below what colloids do you
find in your home and their uses.
Common
Household
Colloids
Where do you
find
Uses
1.
2.
3.
4.
5.

23. Answer Key
Start Here
1.
2.
3.
4.
5.
6.
7.
8.
9.
10. 
Word Hunt
1.Colloid
2.Foams
3.Disperse
4.Emulsion
5.Aerosols
Try It
Activity 1
1.whipped
cream
2.butter
3.mayonnais
e
4.cheese
5.paint
Speed Up
1.a
2.a
3.b
4.c
5.d
6-10.
Answer may
vary

24. References:
Books
 Adduru, M.Q., and Valencia, N.G. (2015), Cyber Science, Worktext in Science
and Technology 6. Manila, Philippines, pages 21-27.
 San Pablo, J.H. (2016), Real-Life Science 6. Quezon City, Philippines, pages11-
15
Websites
 http://www.scienceclarified.com/Ci-Co/Colloid.html#ixzz6LpMprlzv
 https://examples.yourdictionary.com/simple-colloid-mixture-examples-in-
chemistry.html
 https://www.chemistrylearning.com/examples-colloids/