SENIOR HIGH SCHOOL

General
Chemistry
1

Quarter 3 – WEEK 1
 Quarter 3, Week 1

Learning Activity Sheets (LAS) No.1

Name of Learner: _______________________________________________________

Grade and Section: _________________________ Date: ___________________

Learning Activity Sheets in General Chemistry 1

(Properties of Matter)

I. Learning Competency
Use properties of matter to identify substances and to separate them ,
(STEM_GC11MP1a-b-5).

II. Background Information for Learners

Do not judge the book by its cover. A saying or quote that is
applicable not only to the persons we encounter every day but also to the
things we use. The said saying reminds us to avoid making unnecessary or
offending comment to someone or something which we know little about
them. That is why, it is important for us to understand the process of knowing
the properties of matter that will lead us to discern on what makes an object
different from other objects. Our understanding on the different properties of
matter could help us to avoid accident in selecting the right material.
Furthermore, those properties of matter could help us to make new inventions
or device that could make our work easier.

Properties of Matter
If we are to find the meaning of the word property, it means
characteristics, traits, or qualities. This only means that properties of matter
are about the observable characteristics, traits, or qualities of matter.

What are the Properties of Matter?

There are two major classifications of the properties of matter. These
are (1) physical property of matter and (2) chemical property of matter.
Furthermore, the physical properties of matter can still be classified into 2
groups. These are (1) intensive physical property and (2) extensive physical
property.

1. Physical property

This refers to the characteristic or trait of matter that can be observed or

perceived with our senses easily without changing its chemical composition.
To understand this concept, look of the picture of the chalk. Could you
determine some of the characteristics of the chalk as shown in the picture
below?
 Based on our observation, we could say that the chalk is white in color
and cylindrical in shape. We have identified these characteristics of chalk
using our sense. Which sense did we use in determining its color and shape?
Very good, we used the sense of sight. This means physical properties of
matter can easily determine using our senses without changing or altering
the composition of matter.

If color and shape can be determined using our sense of sight, what
properties can be determined if we will use the sense of touch and smell. You
are right, if we will use the sense of touch, the properties of matter that could
determine are the texture and temperature. And if we will use the sense of
smell, the property of matter that could determine is the scent.
Now, those physical properties of matter which we have mentioned a
while ago can be classified into two. These are (1) intensive physical property
and (2) extensive physical property. How is intensive physical property
different form the extensive physical property? To find out, let us read the
difference of Intensive Physical Property and Extensive Physical Property.

A. Intensive Physical Property

This is the characteristic or trait of matter that does not depend on the
amount. Earlier, we have identified the color and shape of the chalk. Those
properties of chalk will fall under intensive physical property because if you
increase the amount of chalk, the color and its shape will remain the same
which is white and cylindrical in shape. In addition, temperature, malleability,
diffusion, and ductility are also under intensive physical property of matter.

Ductility is the ability of substance to be stretched into wire. A very

good example of this property is found in the strings of the guitar or wires
inside the electrical connections. Do you see sample of this inside your house?

Ductility of the copper metal

Malleability is the ability of substance to be hammered or
transformed into thin sheet. This can be seen among metals like bracelet, tin
cans, and metallic roofs of our houses. Do you see sample of this inside your
house?
 Malleability of the copper metal
Diffusion is the ability of matter to be scattered or spread out. This can
be observed when you add ink into the water. The ink will mix to the water
even without stirring it. Can you cite another example of this?

Diffusion of ink
B. Extensive Physical Property

It is the characteristic or trait of matter which is dependent on the

amount or quantity. Examples of extensive physical properties of matter are
size, mass, volume, density, length, and width. This means that if the amount
of matter or particles is increased, it may cause change in the size, mass,
volume, density, length, and width of an object.

Measuring tape Graduated cylinder

Which intensive physical properties of matter are being measured by the

tape measure and graduated cylinder?
2. Chemical Property

This is the characteristic or trait that can be observe d when a matter

reacts to another substance. Combustibility/flammability and oxidation like
rusting are examples of chemical properties of matter.

Flammability of Paper Rusting of Iron Roof

Uses of the Properties of Matter

Many products which we are using at home have similarities to one

another. Good examples of these are the sugar and salt which are both white
in color. Because of this similarity in color, some people may get confused on
which of the salt and sugar will they use specially in times of urgency.
Because of this, people should be familiar with the different properties of
matter to various reasons. First is to avoid accident because of the wrong
choice of substance, and secondly is get the best result by using the right
material.

III. Accompanying DepEd Textbook and Educational Sites

Mendoza E. and Religioso T. (2008). Chemistry Laboratory Manual.
Phoenix Publication
Mendoza E. (2003). Chemistry Textbook. Phoenix Publication

IV. Activity Proper

Activity 1. CHOOSE THE BEST!
Directions: Write the letter of the best answer on a separate sheet of paper.

_____1. Which physical property of matter is shown when a piece of material

is turned into a thin sheet?
A. Stiffness B. Flexibility C. Elasticity D. Malleability
______ 2. Copper wires are usually used for electrical wire installations
because it is ____
 B. ductile B. malleable C. brittle D. cheap
______ 3. Materials that easily break when a force is applied like glass are said
to be ____
C. malleable B. brittle C. ductile D. elastic
_____ 4. Which of the materials below is a poor conductor of heat?
D. Iron B. Wood C. Gold D. Copper
_____ 5. ____ is the characteristic or trait that can be observed when a matter
reacts to another substance.
A. Intensive Physical Property C. Chemical Property
B. Extensive Physical Property D. Physical Property

Activity 2. TESTING THE PROPERTIES OF MATTER

Procedure
1. Prepare a spoon of sugar, salt, water, cooking oil and tissue paper using
measuring spoon then place each in separate containers.
2. Observe the five substances then complete the table below by
determining their physical and chemical properties.

Data and Result

Substance Mass (g) Color Taste Flammability

1. Salt

2. Sugar

3. Water

4. Cooking oil

5. Tissue
paper

Questions
1. Which substances have similar physical property? Explain your
answer.
2. Which substances have the same mass? How about color, taste, and
flammability?
3. Which substance is said to be flammable? What precautionary measure
could you cite about flammable materials?
4. Which property is extensive physical property? How about the intensive
physical property and chemical property of matter?
 Activity 3. BE A DETECTIVE CONAN!
Procedure
1. A crime situation is presented to you. You need to solve the crime by
using your senses and given information.
2. Fill in the investigation report correctly.

CRIME SCENE
A man is found dead in a vacant lot near his workplace. In the
crime scene, the SOCO collected different pieces of evidence including
two pieces of cloth tainted with unknown stains. The police are
hoping that through these pieces of evidence they could find the
culprit or criminal.

Cloth A Cloth B

Pieces of evidence

Data and Result

Crime: ___________________ Date: _______________________

Piece of collected evidence:
___________________________________________________________________
Observations:
Cloth A:
___________________________________________________________________
___________________________________________________________________

Cloth B:
___________________________________________________________________
___________________________________________________________________

Final Findings:
___________________________________________________________________
___________________________________________________________________

Questions
1. Which of the cloth A and cloth B can be used as possible source of
evidence in the crime? Why?
__________________________________________________________________
__________________________________________________________________
__________________________________________________________________
 2. Which property of matter did you use in making your observation?
__________________________________________________________________
__________________________________________________________________
__________________________________________________________________

V. Reflection
You must fill in the component of the KWL chart to generalize the things
they have learned about the topic.
KWL Chart
Topic Know Want to know Learned
Properties of I understand I want to know I have learned
Matter that…… that…… that ….

VI. Answer Key

C 5.
B 4. may vary. may vary. may vary.
B 3. answer answer answer
B 2. Student’s Student’s Student’s
D 1.
Activity 2 Activity 3 Reflections
Activity 1

Prepared by:

RODEL A. AZARES
SHS-Teacher
 Quarter 3, Week 1

Learning Activity Sheets (LAS) No.2

Name of Learner: _______________________________________________________

Grade and Section: _________________________ Date: ___________________

Learning Activity Sheets in General Chemistry 1

(Chemical Formula of Common Chemical Substances)

I. Learning Competency
Recognize the formulas of common chemical substances,
(STEM_GC11Mp1a-b-9).

II. Background Information for Learners

Food, medicine, and other product labels may sometime confuse you on
the ingredients or materials that contain them because these are written in
their chemical formula form. These formulas are often alien to us because of
our lack of understanding or idea about chemical formula. Most of the time,
we associate chemical formulas for scientists or chemists only. That is why
some people tend to lose interest on trying to understand the meaning of a
chemical formula because to them as ordinary persons, this thing is not
important and just a waste of time if they will study it.

But because of the changing society coupled with information

explosion, it is important to us to grasp an idea on how to interpret a chemical
formula and become acquainted with common formulas which we usually
encounter every day. This module will discuss the meaning of a given chemical
formula as well as the formula of some common chemical substances.

What is a Chemical Formula?

Chemical Formula
If we are to study the meaning of chemical formula, two words are
involved namely chemical and formula. Chemical refers to a compound or
substance while formula refers to the symbolic expression. Thus, a chemical
formula is a symbolic expression of a compound or substance. It is also
described as shorthand of expressing the types and the number of atoms in a
substance.

What is the Meaning of a Given Chemical Formula?

Once again, chemical formula is the shorthand of expressing the types
and the number of atoms in a substance. For example, CO2 is the chemical
formula of a substance known as carbon dioxide. But what does this CO 2
formula mean? What information can we get from this formula? In this
substance based on its formula of CO2, the said substance is made up of two
types of atoms, these are carbon and oxygen. This is because the formula has
two different letters that are written in capital form: C and O. The capital letter
is known as chemical symbol that represents a certain substance known as
element. Let us use the periodic table below to determine the chemical symbol
of the elements.
 Molecular Structure of CO2.

The chemical formula also tells the number of each type of atom and
the central atom of the molecule specifically if it is not a diatomic molecule.
The first chemical symbol written at the right side of the formula tells us that
it is the central atom, or the atom located at the center of the molecule. So,
for CO2, since C is the first letter of the chemical formula, the C which is the
carbon atom is the central atom.

If the letter is the chemical symbol that represents an element, the

subscript represents the number of atoms in the chemical formula. In CO 2,
the subscript of oxygen is 2 while carbon is 1. Even though there is no number
1 indicated after letter C in CO2, it is presumed that there is one. So, the
number after the letter refers to its number of atoms.

Chemical Formula of Carbon dioxide

So, let us take HCl as another example. Determine the atoms
represented by chemical symbols that make up the formula and determine
the number of each atom.
 In the chemical formula HCl, there are two elements which are
combined. These are hydrogen represented by the chemical symbol of H and
chlorine which is represented by the chemical symbol of Cl. Note that the l in
Cl is not expressed in capital letter. This means that the letter l is part of Cl
and not separate chemical symbol. After determining that HCl has two
combined chemical symbols. The next step is to identify the number of atoms
of each element that make up the chemical formula. So, in HCl, since there is
no number written after H, we presumed that there is only 1 H. The same
thing with Cl, there is only 1 atom of Cl in the formula. In short, there is only
1 Hydrogen atom and 1 Chlorine atom.

III. Accompanying DepEd Textbook and Educational Sites

Mendoza E. and Religioso T. (2008). Chemistry Laboratory Manual.
Phoenix Publication
Mendoza E. (2003). Chemistry Textbook. Phoenix Publication

IV. Activity Proper

Activity 1. COMPLETE ME!
Directions: Complete each statement with a word/ concept in the blank of
the item.

1. ___________ is shorthand of expressing the types and the number of

atoms present in a substance.
2. The chemical symbol of carbon is ____________________.
3. There is/are ______________ nitrogen atom/s present in this chemical
formula NH3.
4. O is the chemical symbol for _____________.
5. There is/are __________ hydrogen atom/s in C6H12O6.

Activity 2. FILL ME UP!

Directions: Determine the common name, the types and number of atoms,
and the molecular structure of the given chemical formula in each item.
Chemical Common Type of Number Molecular Structure
Formula Name Atoms of Each
Atom
1. CaCO3

2. CaO

3. C2H5OH

Activity 3. THINK OUT OF THE BOX!

Directions: Read and analyze each question. Select only one from the given
choices and think out of the box that could give positive outlook to your
response. Write your answer in a piece of paper.

1. Research on the active ingredient or chemical present in plant

extract found in the Philippines that has antiseptic property.
Determine the chemical formula of the active ingredient.
2. Formulate a right formula to successful life? How about to COVID-
19-free life?

V. Reflection
You must fill in the component of the KWL chart to generalize the things
they have learned about the topic.
KWL Chart
Topic Know Want to know Learned
Chemical I understand I want to know I have learned
formula of that…… that…… that ….
common
chemical
substances

VI. Answer Key

5. 12 may vary. may vary. may vary.

4. OXYGEN answer answer answer
3. 1 Student’s Student’s Student’s
2. C
FORMULA Activity 2 Activity 3 Reflections
1. CHEMICAL

Activity 1

Prepared by:

RODEL A. AZARES
SHS-Teacher
 Quarter 3, Week 1

Learning Activity Sheets (LAS) No.3

Name of Learner: _______________________________________________________

Grade and Section: _________________________ Date: ___________________

Learning Activity Sheets in General Chemistry 1

(Consumer Products)

I. Learning Competency
Compare consumer products on the basis of their components for use,
safety, quality and cost, (STEM_GC11MP1a-b-11).

II. Background Information for Learners

Consumer products are something that we cannot live without. Every
activity we do such as taking a bath, cooking our favorite dishes, driving our
cars, or monitoring and maintaining our good health condition, there will
always be a consumer product that is involved. Those consumer products
were made possible because of the interactions of Science, Technology and
Society. Now, how Science, Technology and Society became involved in the
creation of those consumer products is something it will be discuss in this
module. We will also discuss when a consumer product may cause harm
despite of its usefulness to our life.

What is a Consumer Product?

Consumer Product
Consumer product is the final good that is bought by individuals or
households for personal use. In other words, consumer products are goods
that are bought for consumption by the average consumer.

What are Consumer Products?

Again, consumer products are goods that are bought for consumption by
the average consumer. Consumer products were made possible because of the
interactions of Science, Technology and Society. The Knowledge (Science) is
being used to come up with the different consumer products (Technology) that
address problems of the community (Society). For example, Bath soap
(Technology) is a consumer product which we usually use to solve a problem of
the Society that is skin infection and poor hygiene.

Bath soap which invented to solve skin infection and poor

hygiene

The Science, Technology and Society are interrelated to one another

because any change in one aspect could also trigger a change to other aspects.
Meaning if Knowledge (Science) will improve due to new or latest discoveries
made by scientists or even an ordinary person (Society), there will be also a
corresponding effect or improvement to the consumer products (Technology)
we use every day.

There are many consumer products available in the market because of

their usefulness. However, the same consumer products may post danger to
anyone. Now, when is a consumer product may cause danger if it is very useful
to us? A consumer product may cause harm to us for two reasons. First is
when we abuse or misuse such product. A good example of this would be the
solvent like rugby that was invented to use as an adhesive material. But for
some instances, the same solvent is being used by drug dependent. And
secondly is if a consumer product was made intended to cause harm such as
gun powder and poisons.

Let us analyze the table below that shows information of bath soap in
terms of its some chemical components, use, safeness, and cost.

Consumer Some Use Level of Cost

Product Chemical Safeness
Components
(Chemical
Formula)

Bath Soap -Glycerine - Cure - Generally -Generally,

(C3H8O3) skin infectionsafe (External very affordable
use only) price
-Sodium - Improve (nonbranded)
hydroxide personal but some are
(NaOH) hygiene
costly if its
-Titanium branded.
dioxide (TiO2)

- Triclosan
(C12H7Cl13O2)
Table showing some information about common bath soap

Based on the table, some of the chemical components used to make

bath soap are glycerine, sodium hydroxide and titanium dioxide. Glycerine is
added to soap as emollient and texture enhancer while sodium hydroxide is
added to bath soap to as main ingredient. Titanium dioxide is added to make
the bath soap opaque while Triclosan is added as the active anti-bacterial
ingredient.

III. Accompanying DepEd Textbook and Educational Sites

Mendoza E. and Religioso T. (2008). Chemistry Laboratory Manual.
Phoenix Publication
 Mendoza E. (2003). Chemistry Textbook. Phoenix Publication

IV. Activity Proper

Activity 1. MATCHY! MATCHY!
Directions: Match the descriptions under Column A with the correction
concepts or words in Column B. Write the letter of the correct answer before
the number.
Column A Column B

________ 1. The amount that must be paid to buy A. Consumer

something Products
________ 2. Refers to ingredient or constituent B. Technology
________ 3. These are goods that are bought for C. Cost
consumption by the average consumer.
________ 4. Refers to an area or a sphere D. Composition
_______ 5. Application of Science E. Field

Activity 2. MY CONSUMER PRODUCT

Procedure
1. Choose a consumer product that is available in the field of medicine,
communication, transportation, and agriculture.
2. Fill-in the table with correct information.

Data and Results

Area or Field Consumer Some Use Level of Cost

Product Chemical Safeness
Components
(Chemical
Formula)

Medicine

Communication
Transportation

Agriculture

QUESTIONS
1. For each field, which problem is being addressed by the consumer product?
________________________________________________________________________
________________________________________________________________________
2. What are some chemical components of the consumer products?
________________________________________________________________________
________________________________________________________________________

Activity 3. PERFORMANCE TASK!

Directions: You are tasked to create a project plan about your own consumer
product you wanted to sell. Tell something about its chemical composition,
use and cost. You may submit your output through Gmail.

V. Reflection
You must fill in the component of the KWL chart to generalize the things
they have learned about the topic.
KWL Chart
Topic Know Want to know Learned
Consumer I understand I want to know I have learned
Products that…… that…… that ….

VI. Answer Key

B 5.
E 4. may vary. may vary. may vary.
A 3. answer answer answer
D 2. Student’s Student’s Student’s
C 1.
Activity 2 Activity 3 Reflections
Activity 1

Prepared by:

RODEL A. AZARES
SHS-Teacher
 Quarter 3, Week 1

Learning Activity Sheets (LAS) No.4

Name of Learner: _______________________________________________________

Grade and Section: _________________________ Date: ___________________

Learning Activity Sheets in General Chemistry 1

(Methods of Separating Components of Mixtures and Compounds)

I. Learning Competency
Describe various simple separation techniques such as distillation and
chromatography, (STEM_GC11MP1a-b-12).

II. Background Information for Learners

The earth is full of different mixtures which are present on land, water,
and air. These mixtures play important roles in our life because of their uses
in the filed agriculture, health, industries and even to our practical living.
However, substances in their mixture forms are not always the ideal
substances for us based on what we are aiming to get or to do, rather its
components are more important. Thus, a mixture must undergo such process
to breakdown its components for our ideal use.

What is Method of Separating Components of Mixture?

Method of Separating Components of Mixtures
If we are to study the meaning of method of separating components of
mixtures and compound, we need to determine first the meaning of important
concepts. First is method which is describe as procedure, process, way, or
technique. Second is the separate which means to move, segregate or keep
apart. Third is component which means constituent, section, or a part of a
larger whole. And lastly is the word mixture which means a substance
produced when two or more pure substances are put together in any
proportion without a chemical union. Thus, method of separating components
of mixtures is a procedure or process of segregating or moving the constituent
or part of a substance which is made up of two or more pure substances.

What are the Methods of Separating the Components of Mixtures and

Compounds?
Once again, method of separating components of mixtures is a
procedure or process of segregating or moving the constituent or part of a
substance which is made up of two or more pure substances. Sample of a
mixture is sea water because sea water contains both water and salt which
are mixed in different proportion or amount. Another example is mixture of
water conglomerate which is a mixture of sand, gravel and cement which is
used as construction materials.
So, what are the different methods of separating the components of
mixtures and compounds? What are laboratory techniques and safety rules
that must be observed in performing those methods? Let us find out the
different separating methods.

1. Filtration
 It is the process of separating the insoluble solid from the liquid
substance by allowing the liquid to pass through a porous material called
filtering agent. The solid particles which are retained in the filter paper is
called residue, and the clear liquid which passes through a filtering agent
such as filter paper is called the filtrate. In using a filter paper, a glass funnel
is used as a support. To transfer the mixture (liquid) from the beaker into the
funnel, you must mix thoroughly the mixture using a stirring rod so that no
solid substance will be left behind. A stirring rod may also be used to guide
the mixture into the funnel to avoid spillage especially if the said funnel is too
small. See to it also that the filter paper is not damaged before using it.

Filtration Process
2. Decantation
This is a method used to separate the liquid layer known as supernatant
and a heavy insoluble solid known as precipitate by allowing the said solid to
settle at the bottom of the container then the liquid above the solid is poured
off carefully into another container. In decantation process, the mixture is
being set aside and given enough time the precipitate to settle at the bottom
of the container such as a beaker. Unlike the filtration process where you can
immediately pour the mixture into the funnel, you must wait all the
precipitate to settle at the bottom of the container before the actual pouring
can be done. In the decantation process, you must pour the liquids into
another container very slowly. A stirring rod may also be used to guide the
liquid into another container to avoid spillage especially if the said container
is too small. In checking the temperature of a container such as beaker, you
may use the back part of your hand to determine it hotness. Do not
immediately touch the container.
 Decantation Process
3. Mechanical Separation
This involves the use of forceps, sieves, magnet and other similar tools
to separate the components of mixtures. Sand and gravel are separated by
passing the mixture over a wire screen. In the mechanical separation, the
involved substances are mostly solids that can be separated manually. Below
is an illustration of a sieve that separate two solid which are the sand and the
gravel. It may look like filtration, but the device used in this process is not
porous.

Mechanical Separation
4. Centrifugation
It is the process that uses a motor device known as centrifuge that
speeds up the settling of the precipitate using centrifugal or rotating motion.
As the mixture inside the test tube of the centrifuge is subjected to centrifugal
force, the heavier component settles at the bottom and the less dense
component settles at the upper portion. Example of this is the separating the
components of blood which include the plasma, buffy coat, and the blood
cells. In using the centrifuge, the number of the test tube inside should have
equal distances and the cover of the centrifuge should be tightly covered to
avoid any untoward incident.

Centrifugation Process

5. Distillation
This is a process that involves the evaporation and condensation of a
liquid solvent from a mixture or solution. This method uses the difference in
boiling points of the components of a mixture. The more volatile liquid in the
mixture boils first, evaporates, then condenses. The distillate is the liquid
formed from the condensation of the vapor. Content of the container should
always be checked to avoid drying up of the said container.

Distillation Process
6. Chromatography
This process uses the difference in the degrees to which substances are
absorbed on the surface of an inert substance such as a filter paper. A drop
of ink or extract will be separated into different components if it is placed at
the end of a filter paper and the tip of the paper can barely touch the solvent.
Separate bands of colors, representing the different components will appear
on the paper. In doing this process, the filter paper should ensure the
touching of the solvent.

Chromatography Process
7. Electrolysis
This is a chemical decomposition or breakdown produced by passing an
electric current through a liquid or solution containing ions. Example of this
is the separation of oxygen atom to the hydrogen atoms from the water
molecules. In doing this method, the positive and negative electrodes should
be submerged completely in the liquid to effectively separate the ions.
 Chromatography Process

III. Accompanying DepEd Textbook and Educational Sites

Mendoza E. and Religioso T. (2008). Chemistry Laboratory Manual.
Phoenix Publication
Mendoza E. (2003). Chemistry Textbook. Phoenix Publication

IV. Activity Proper

Activity 1. CHOOSE THE BEST!
A. Multiple Choice. Read and answer each statement carefully then write
the letter of the best answer before the number.

1. In preparing coffee using the Barako coffee beans, you may pour the boiled
coffee mixture into a piece of cloth. Which method is being illustrated?
A. Filtration C. Distillation
B. Decantation D. Mechanical separation

2. Which of the following mixtures could NOT be used in separating the

components of mixtures through decantation?
A. Quail egg in hot water C. Sand in glass of water
B. Sugar in hot water D. Utensils in warm water

3. Which of these methods could be used to separate an insoluble solid from

a soluble solid?
A. Mixing the mixture with water and then filtering it. Then evaporate
the water from the resulting liquid.
B. Mixing the mixture with sand and then filtering it. Then evaporate
the sand from the resulting solid.
C. Mixing the mixture with hydrogen gas and then filtering it. Then
evaporate the solids out.
D. None of the above.
4. Which method uses the boiling point differences by gradually heated a
mixture? The substance that vaporize the easiest will separate first.
A. Filtration C. Distillation
B. Decantation D. Mechanical separation
5. A coffee filter is used to separate coffee liquid from ground, this is a suitable
example of ____
A. filtration C. distillation
B. decantation D. mechanical separation

Activity 2. COMPLETE THE SENTENCE, PLEASE!

Directions: Complete each statement with a word/ concept in the blank of
the item.
1. _____________________is a chemical decomposition of breakdown
produced by passing an electric current through a liquid or solution
containing ions.

2. _____________________involves the use of forceps, sieves and other

similar tools to separate the components of mixtures.

3. _____________________is a process that involves the evaporation and

condensation of volatile liquids. The more volatile liquid in the mixture boils
first, evaporates, then condenses.

4. ____________________is a method used to separate liquid and a heavy

insoluble solid like soil by allowing the solid to settle at the bottom of the
container then the liquid above the solid is poured off carefully into another
container.

5. ____________________ is the process of separating the insoluble solid

from the liquid substance by allowing the liquid to pass through a porous
material called filtering agent.

Activity 3. METHODS OF SEPARATION

Procedure
A. Sand of time
1. Prepare 1 kg soil from the backyard and sieve.
2. Transfer the 1 kg soil into the sieve. Measure the mass of the sand and
the materials left on the sieve.

B. Pass it through the cloth

1. Measure 100 mL water from the bottom of your water container.
2. Cover the top of a glass with a piece of cloth then pour the 100 mL water
unto it.
3. After pouring the water, observe the surface of the clothe. Note any
observation that you will make.

Observations
 A. ____________________________________________________________________
____________________________________________________________________
____________________________________________________________________
____________________________________________________________________

B. ____________________________________________________________________
____________________________________________________________________
____________________________________________________________________
____________________________________________________________________

Questions
1. What material passes though the holes of the sieve? Why?
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________

2. What did you find on the surface of the clothe? Is it safe to drink before
passing through that clothe? Why?
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________

V. Reflection
You must fill in the component of the KWL chart to generalize the things
they have learned about the topic.
KWL Chart
Topic Know Want to know Learned
Methods of I understand I want to know I have learned
Separating that…… that…… that ….
Components of
Mixtures and
Compounds

VI. Answer Key

A 5. 5. FILTRATION
C 4. 4. DECANTATION may vary. may vary.
D 3. 3. DISTILLATION answer answer
B 2. SEPARATION Student’s Student’s
A 1. 2. MECH.
1. ELECTROLYSIS Activity 3 Reflections
Activity 1 Activity 2

Prepared by:

RODEL A. AZARES
SHS-Teacher