This is the Grade 9 Science self-learning module for Quarter 2 (Matter), Module 5: Uses of Organic Compounds. It was written for learners studying at home and comes from the Department of Education National Capital Region (First Edition, 2020). After working through it, learners should be able to name common organic compounds, explain what each is used for, and describe some of their properties.
On this page 6 sections
What learners will learn
The module focuses on this learning competency:
- Explain how the structure of the carbon atom affects the type of bonds form. (S9MT-IIg-h-17)
After going through the module, learners are expected to:
- determine the different uses of organic compounds and cite examples of each organic compound;
- find the properties of common organic compounds through experimentation; and
- appreciate the uses of organic compounds.
The module has one lesson, Lesson 1: Uses of Organic Compounds. It builds on the previous module, which covered the differences between organic and inorganic compounds. It asks learners to think about three key questions:
- What are the uses of organic compounds?
- What are the examples of each organic compound?
- What are the properties of common organic compounds?
Common organic compounds and their uses
The module ties each compound to everyday situations at home, in school, and at work. These are the examples it uses in its stories, tests, and answer key:
| Compound | Uses named in the module |
|---|---|
| Liquefied petroleum gas (LPG) | Cooking fuel. It is propane and butane in liquid form. |
| Butane | Fuel for cigarette lighters and other small lighters, disposable lighters, and fuel canisters for camping stoves and lanterns. Also used in gasoline blending and as a solvent for extracting fragrances. |
| Acetylene | Artificial ripening of fruits, and oxy-acetylene welding and cutting of metals |
| Gasoline | Fuel for cars. It is flammable, so children should not play with it. |
| Isopropyl alcohol | Cleaning wounds so they do not get contaminated. Also used to make alcohol wipes, swabs, hand sanitizers, disinfectants, and mouthwash. |
| Lubricating oil | Keeps metal parts, such as bicycle parts, from rusting quickly |
| Kerosene | Fuel, and removing paint from a paint brush |
| Ethyl alcohol | Beverages, antiseptic, and fuel |
| Acetone | Cleaner |
| Formaldehyde | Embalming bodies, preserving tissue specimens, and sterilizing soil |
| Esters | Give many flowers, perfumes, and ripe fruits their distinctive smells and flavors |
The What’s In part opens with a short story. A mother and daughter find that their LPG tank is empty, so they cook with a butane stove instead. The What’s New part looks at isopropyl alcohol and the COVID-19 pandemic. It explains that the pharmaceutical industry uses isopropyl alcohol to make many of the sanitizing products people rely on.
Properties and bonds
The module also asks why it matters to know the properties of common liquid materials. The reasons it gives are to understand how they work, to know their uses, and to know the possible dangers they pose. The activities have learners compare properties such as:
- how a liquid flows
- its chemical behavior
- its smell
- its melting point
- its boiling point
To link back to the competency on carbon bonding, the pretest asks which hydrocarbon has a double bond. The answer is propene.
How to use this module
The module follows the usual parts of a DepEd self-learning module:
- What I Know: answer the 10-item pretest first to see what you already know.
- What’s In and What’s New: review the butane story and read about isopropyl alcohol.
- Activities: do the activities, such as identifying compounds, matching compounds to their uses, and studying their properties.
- Assessment: take the post-test to check what you learned.
- Additional Activities: look for common organic compounds in your home, list them in a table, and write the uses of each.
Tips for each reader:
- Learners: write all answers on a separate sheet of paper and do not mark the module. Use the answer key honestly, only after you finish each part.
- Parents and facilitators: the module includes Notes to the Teacher with strategies for helping your child learn at home.
- Teachers: the home inventory in Additional Activities is a simple way to see whether learners can connect the lesson to compounds they use every day.
Frequently asked questions
What grade and quarter is this module for?
It is for Grade 9 Science, Quarter 2 (Matter). It is Module 5: Uses of Organic Compounds.
What learning competency does the module cover?
It covers competency S9MT-IIg-h-17: Explain how the structure of the carbon atom affects the type of bonds form.
Does the module have an answer key?
Yes. It has answers for the pretest, the activities, and the post-test. Learners are asked to use it honestly.
What organic compounds does the module discuss?
Examples include LPG, butane, acetylene, gasoline, isopropyl alcohol, lubricating oil, kerosene, ethyl alcohol, acetone, formaldehyde, and esters, each linked to everyday uses.
What is acetylene used for?
The module names two uses: the artificial ripening of fruits, and oxy-acetylene welding and cutting of metals.
Full text of the module
The text below is a transcription of the PDF above, as printed.
Science Quarter 2- Matter Module 5: Uses of Organic Compounds
Science Quarter 2- Matter Module 5: Uses of Organic Compounds
9
[illustration: students reading and studying outdoors and at a desk, a teacher, and a globe]
CO_Q2_Science 9_ Module 4
Science – Grade 9 Alternative Delivery Mode Quarter 2: Matter – Module 5: Uses of Organic Compounds First Edition, 2020
Republic Act 8293, section 176 states that: No copyright shall subsist in any work of the Government of the Philippines. However, prior approval of the government agency or office wherein the work is created shall be necessary for exploitation of such work for profit. Such agency or office may, among other things, impose as a condition the payment of royalties.
Borrowed materials (i.e., songs, stories, poems, pictures, photos, brand names, trademarks, etc.) included in this module are owned by their respective copyright holders. Every effort has been exerted to locate and seek permission to use these materials from their respective copyright owners. The publisher and authors do not represent nor claim ownership over them.
Published by the Department of Education Secretary: Leonor Magtolis Briones Undersecretary: Diosdado M. San Antonio
Development Team of the Module
Writer: Luisito G. Peralta Editor: Loreta E. Santos Reviewers: Aurora T. Alcazar, Anthony D. Angeles, Lonida A. Caiña, Marilou I. Ignacio, Mariel G. de Jesus, Mary Grace C. Dimacutac, Mary Grace G. Fuentes, Myla D. German, Myrla D. Guevarra, Rosemarie V. Rodanilla, Avie John Tesorero, Margie S. Soriano Language: Elvira P. Emerenciana, Nova V. Tarcena, Lilibeth M. De Lansig Design and Layout: Edgardo Q. Reyes Layout Artist: Luisito G. Peralta, Mark Joseph Y. Samarita, Ana Lisa M. Mesina Management Team: Malcolm S. Garma, Genia V. Santos, Dennis M. Mendoza, Micah S. Pacheco, Josefina M. Pablo, Manolo C. Davantes Jr., Dalisay E. Esguerra, Hilda C. Valencia
Printed in the Philippines by ________________________
Department of Education – National Capital Region
Office Address: Misamis St. Bago Bantay, Quezon City Telefax: (632)8929-0153 E-mail Address: depedncr@deped.gov.ph
9
Science Quarter 2- Matter Module 5: Uses of Organic Compounds
Introductory Message
This Self-Learning Module (SLM) is prepared so that you, our dear learners, can continue your studies and learn while at home. Activities, questions, directions, exercises, and discussions are carefully stated for you to understand each lesson.
Each SLM is composed of different parts. Each part shall guide you step-by-step as you discover and understand the lesson prepared for you.
Pre-tests are provided to measure your prior knowledge on lessons in each SLM. This will tell you if you need to proceed on completing this module or if you need to ask your facilitator or your teacher’s assistance for better understanding of the lesson. At the end of each module, you need to answer the post-test to self-check your learning. Answer keys are provided for each activity and test. We trust that you will be honest in using these.
In addition to the material in the main text, Notes to the Teacher are also provided to our facilitators and parents for strategies and reminders on how they can best help you on your home-based learning.
Please use this module with care. Do not put unnecessary marks on any part of this SLM. Use a separate sheet of paper in answering the exercises and tests. And read the instructions carefully before performing each task.
If you have any questions in using this SLM or any difficulty in answering the tasks in this module, do not hesitate to consult your teacher or facilitator.
Thank you.
What I Need to Know
[illustration: hand pointing at a circle icon]
This module was designed and written with you in mind. It is here to help you master Uses of Organic Compounds. The scope of this module permits it to be used in many different learning situations. The language used recognizes the diverse vocabulary level of students. The lessons are arranged to follow the standard sequence of the course, but the order in which you read them can be changed to correspond with the textbook you are now using.
The module focuses on achieving this learning competency:
Explain how the structure of the carbon atom affects the type of bonds form. (S9MT-IIg-h-17)
After going through this module, you are expected to:
- determine the different uses of organic compounds and cite examples of each organic compound;
- find the properties of common organic compounds through experimentation; and,
- appreciate the uses of organic compounds.
What I Know
[illustration: hand holding a pencil]
Choose the letter of the best answer. Write your answer on a separate sheet of paper.
Which of the following can a Propane (C3H8) and Butane (C4H10) in fluid form be utilized?
- A. Compressed Natural Gas (CNG)
- B. Oxygen cylinders
- C. Butane
- D. Liquid Petroleum Gas (LPG)
Which of the following is utilized for artificial maturing of fruits?
- A. Acetone
- B. Phenol
- C. Acetylene
- D. Butane
Which of the following is broadly utilized within the oxy-acetylene welding and cutting metals?
- A. Methanol
- B. Acetylene
- C. Ethylene
- D. Phenol
Mary’s car halted at the center of the street. She found out that her car has run out of fuel. Which compound must she purchase?
- A. Acetone
- B. Gasoline
- C. Isopropyl
- D. Water
Juan Victor’s grandma was cooking their dinner when she shortly stopped and said, “Oh, the tank is already empty!” Then her grandmother ask him to purchase another tank. What did Victor’s grandma instructed him to buy?
- A. Acetone
- B. Formalin
- C. Lubricating oil
- D. Liquefied petroleum gas (LPG
Juan Miguel needs to keep his bicycle’s parts from rusting quickly. Which of the following material do you think will Miguel utilizes?
- A. Water
- B. Isopropyl alcohol
- C. Formalin
- D. Lubricating oil
Michelle told her grandson, Miguel, never to play with gasoline. Why do you think she does not permit him to do it?
- A. Gasoline is explosive
- B. Gasoline is flammable
- C. Gasoline is dangerous
- D. all of the above
Martin Luis cut his finger inadvertently when he was cutting his nail. He applied something on his wound so that it would not get contaminated. Which compound was utilized?
- A. Butane
- B. Isopropyl alcohol
- C. Formalin
- D. Acetone
Why is it vital to know the properties of the common fluid materials?
- A. To know how these fluid work
- B. To know the uses of the fluid
- C. To know conceivable threat from these kinds of material
- D. All of the above
Which hydro carbon compound contains a double bond within the atom?
- A. ethane
- B. methane
- C. propene
- D. propyne
Lesson 1: Uses of Organic Compounds
In the previous module, you have learned about the differences of organic from inorganic compounds. In this module, you will learn about the different uses of organic compound. You are going to cite examples of each organic compound.
Here are some key questions for you to ponder after finishing this module:
- What are the uses of organic compounds?
- What are the examples of each organic compounds?
- What are the properties of common organic compounds?
What’s In
[illustration: hand holding a puzzle piece]
Let’s recall your understanding of concepts of organic compound application
A mother and daughter are living together. One morning the mother needed to leave their house for work. The mother told her daughter to cook their lunch. She instructed her daughter to cook using their stove, but unfortunately their LPG is empty. They have a stock of butane stove. The daughter asked her mother what butane is? Butane is blended with propane and other hydrocarbons. It is used for fuel primarily in cigarette or other small lighters; it is also used for gasoline blending as fuel gas, fragrance extraction solvent. So, the daughter got an idea to make use of butane stove to cook for their dinner.
Guide Questions:
- What is butane?
- How is butane utilized in the situation above?
What’s New
[illustration: hand holding a plant sprout]
Isopropyl Alcohol V.S COVID-19 Pandemic
Within the pharmaceutical sector, isopropyl alcohol is utilized to create a wide range of items, including alcohol wipes, swabs hand sanitizer, disinfectants, oral mouth wash, and different other producers. Isopropyl alcohol is additionally utilized as a
CO_Q2_Science 9_ Module 4
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- Michael needs to expel the ruddy paint within the paint brush so that he may utilize it once more. What organic compound is used to expel the paint on the paint brush?
A. Acetic acid B. Lubricating oil C. Kerosene D. Formaldehyde
- Which is NOT a common use of methane?
A. Fertilizer B. Heating water C. Fruit ripening agent D. Antifreeze component
- Which hydrocarbon is commonly used in disposable lighters and in fuel canisters for gas camping stoves and lanterns?
A. Ethyne B. Butane C. Propene D. Pentane
- Formaldehyde is an aldehyde with the formula HCHO, a colorless gas with a pungent and irritating odor. Which of the following is NOT a use of formaldehyde?
A. Used to sterilized soil B. Embalming bodies C. Preservation of tissue specimens D. Fermenting corn or molasses
- Which is responsible for the distinctive odors and flavors of many flowers, perfumes, and ripe fruits?
A. Esters B. Ethers C. Alcohol D. Aldehyde
- Marcy’s car stopped at the middle of the road. She found out that her car has ran out of fuel. Which compound must she buy?
A. kerosene B. gasoline C. lubricating oil D. water
Additional Activities
Look for some common organic compounds in your home. List them down on the table below and cite the uses of each compound. Write your answer on a separate sheet of paper.
| Common compound | Uses |
|---|---|
| . | |
Answer Key
[transcriber’s note: this page is printed upside down; the text is transcribed in reading order]
What I Know
Pre-test
- D
- C
- B
- B
- D
- D
- B
- B
- D
- C
Activity no. 1
[transcriber’s note: the word-search grid is printed upside down and its letters could not be reliably transcribed]
- Glycerol
- Formaldehyde
- Ethyl
- Methane
- Butane
- Ethyl
- Acetylene
- Acetone
- Urea
- Aniline
Activity no. 2
- Ether
- Phenol
- Urotropine
- Benzoic Acid
- Ethyl bromide
- Formamide [?]
Activity no. 3
[transcriber’s note: this page is printed upside down; the text is transcribed in reading order]
- Polystyrene
- Gammexene
- Carbon Tetrachloride
- Benzene
Organic compound and their uses
| Uses | Gasoline | Ethyl alcohol | Acetone | LPG | Kerosene | Acetic acid |
|---|---|---|---|---|---|---|
| Beverage | / | |||||
| Antiseptic | / | / | ||||
| Fuel | / | / | / | / | / | |
| Cleaner | / | / |
Activity 4. Write the chemical formula of the following:
- E
- D
- C
- B
- A
Activity 5.
- Flow
- Chemical
- Smell
- Melting Point
- Boiling point
What can I do?
- Answer may vary on student’s output
Assessment
Post test
- C
- A
- D
- B
- C
- C
- B
- D
What I Have Learned:
Chemical
Alcohol
Organic compound
Carboxylic
Ibuprofen
References
Books:
Alvarez, Liza A., Dave G. Angeles, Hernan L. Apurada, Ma. Pillar P. Carmona, Oliver A., Lahorra, Judith f. Marcaida, Ma. Regaele A. Olarte. Science 9 – Learner’s Module. DepEd – Instructional Materials Council Secretariat (DepEd-IMCS). Pasig city: FEP Printing Corporation, 2014.
For inquiries or feedback, please write or call:
Department of Education – Bureau of Learning Resources (DepEd-BLR)
Ground Floor, Bonifacio Bldg., DepEd Complex Meralco Avenue, Pasig City, Philippines 1600
Telefax: (632) 8634-1072; 8634-1054; 8631-4985
Email Address: blr.lrqad@deped.gov.ph * blr.lrpd@deped.gov.ph
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