Learning Outcomes
What You Will Learn
Student Learning Outcomes (SLOs) as defined by FBISE for Unit 1.
Define chemistry as the study of matter, its properties, composition, and interactions with energy
Explain with examples that chemistry has many sub-fields and interdisciplinary fields
Formulate essential questions important for each branch of chemistry
Differentiate between Science, Technology, and Engineering with physical science examples
Identify daily life applications of each branch of chemistry
Analyse real-world examples showing how science, technology, and engineering work together
Chemistry Unit 1 — Complete Notes
Full unit with all 12 branch definitions, essential questions, daily life examples & complete exercise solutions
Branches of Chemistry
12 Major Branches
Chemistry is a diverse field of study, surrounding numerous sub-fields and interdisciplinary areas.
ORG
Organic
Carbon compounds
INO
Inorganic
Elements except organic
PHY
Physical
Laws & theories of matter
ANA
Analytical
Methods & instruments
BIO
Biochemistry
Chemistry in living organisms
ENV
Environmental
Pollution & toxic substances
IND
Industrial
Large-scale production
MED
Medicinal
Drugs & biological targets
POL
Polymer
Polymers & polymerization
GEO
Geochemistry
Earth's crust composition
NUC
Nuclear
Changes in atomic nuclei
AST
Astrochemistry
Stars, planets & space
Essential Questions
Key Questions Per Branch
Essential questions help enhance understanding of each branch of chemistry — these form the foundation for exploring key concepts.
| Branch | Essential Question |
|---|---|
| Physical Chemistry | What is the structure of an atom, and how does it influence chemical behavior? |
| Organic Chemistry | Why is carbon considered the backbone of organic compounds? |
| Inorganic Chemistry | What distinguishes inorganic compounds from organic compounds? |
| Analytical Chemistry | How are analytical methods used to identify and quantify chemical substances? |
| Biochemistry | How do biomolecules contribute to the structure and function of living organisms? |
| Environmental Chemistry | How do human activities contribute to air pollution and climate change? |
| Nuclear Chemistry | How do nuclear reactions differ from chemical reactions? |
Real-World Use
Daily Life Applications
Each branch of chemistry plays a practical role in everyday products, processes, and technologies.
ORG
New Medicines
Synthesizing drugs that target proteins/enzymes
INO
Li-ion Batteries
Electronics, headphones, electric vehicles
ANA
Forensic Chemistry
Identifying drugs, fibers & body fluids
PHY
Vehicle Batteries
Built on the principle of electrochemistry
ENV
Water Treatment
Sedimentation, filtration & disinfection
POL
Plastic Bags
Polyethylene chains from monomers
Core Concept
Science, Technology & Engineering
These three pillars work together to solve real-world problems using chemistry.
Science
Understand
The systematic process of constructing and organizing knowledge about the universe. Science seeks to recognize fundamental principles of the natural world — e.g., chemists understanding the behaviour of matter and chemical reactions.
Technology
Apply
The process of applying scientific knowledge to practical applications, creating tools, machines, and systems that enhance our lives — and making chemistry research and applications more efficient.
Engineering
Build
The use of science and mathematics to design and construct systems, structures, and tools. Chemical engineers develop manufacturing processes for chemicals, fuels, medicines, and polymers.
PART 1
Definition & Branches of Chemistry
Definition of Chemistry
1. What is chemistry? Define it and its interactions with matter and energy.
• How is chemistry defined as a science?• What does chemistry deal with?
Chemistry is the science that investigates the materials of the universe and the changes they undergo. It deals with the composition, structure, properties, behavior, and changes of matter and energy. Understanding chemistry helps explain natural phenomena and leads to the formation of new substances, drugs, and technologies.
📝 Green chemistry is a model of chemical products and processes that reduces the use of hazardous substances, helping reduce pollution.
2. Why is it important to study chemistry?
• How does chemistry help in daily life?
Understanding the fundamental concepts of chemistry helps explain natural phenomena and apply them to the formation of new substances, drugs, and technologies that benefit human life.
Branches of Chemistry
1. Define organic, inorganic, and physical chemistry.
• Which branch deals with carbon compounds?• Which branch explains laws and theories of matter?
Organic Chemistry deals with substances containing carbon (except carbonates, bicarbonates, oxides, and carbides). Inorganic Chemistry deals with elements and their compounds except organic compounds. Physical Chemistry deals with laws and theories to understand the structure and changes of matter.
2. Define analytical chemistry and biochemistry with examples.
• What is biochemistry also concerned with?
Analytical Chemistry deals with methods and instruments for determining the composition and properties of matter, e.g., titration. Biochemistry deals with physical and chemical changes that occur in living organisms, such as digestion and respiration.
3. Define environmental chemistry and industrial chemistry.
• Which branch deals with large-scale production of chemicals?
Environmental Chemistry deals with the study of chemical and toxic substances that pollute the environment and their adverse effects on human beings. Industrial Chemistry deals with the large-scale production of chemical substances.
4. Define medicinal chemistry and polymer chemistry with examples of polymers.
• Name some examples of synthetic polymers.
Medicinal Chemistry studies the interaction between drugs and biological targets and the development of new medicinal agents. Polymer Chemistry focuses on the study of polymers, their types, properties, and uses — examples include nylon, plastic bags, polyethylene cups, polyester, and Teflon coated cookware.
5. Define geochemistry, nuclear chemistry, and astrochemistry.
• Which branch studies chemical processes in stars and interstellar space?
Geochemistry deals with the study of chemical composition, distribution, and transformation of elements in the Earth's crust (rocks, minerals, soils, water, atmosphere). Nuclear Chemistry deals with the changes that occur in atomic nuclei. Astrochemistry deals with the study of chemical processes and reactions in astronomical environments such as stars, planets, comets, and interstellar space.
PART 2
Essential Questions for Each Branch
Physical, Organic & Inorganic Chemistry
1. State an essential question for physical chemistry.
• How do different types of chemical bonds form?
An essential question in physical chemistry is: What is the structure of an atom, and how does it influence chemical behavior? Another is: How do different types of chemical bonds (ionic, covalent, metallic) form and function?
2. State an essential question for organic chemistry.
• What are functional groups, and how do they affect properties?
An essential question in organic chemistry is: Why is carbon considered the backbone of organic compounds? Another is: What are the major functional groups in organic molecules, and how do they affect chemical properties?
3. State an essential question for inorganic chemistry.
• How does the Periodic Table help organise elements?
An essential question in inorganic chemistry is: What distinguishes inorganic compounds from organic compounds? Another is: How does the Periodic Table help organise elements?
Analytical, Biochemistry & Environmental Chemistry
1. State an essential question for analytical chemistry.
• How are unknown substances identified?
An essential question in analytical chemistry is: How are analytical methods used to identify and quantify chemical substances?
2. State an essential question for biochemistry.
• What biomolecules are studied in biochemistry?
An essential question in biochemistry is: How do biomolecules such as carbohydrates, proteins, nucleic acids, and lipids contribute to the structure and function of living organisms?
3. State two essential questions for environmental chemistry.
• What role do greenhouse gases play in climate change?
Essential questions in environmental chemistry include: How do human activities contribute to air pollution, and what are the consequences for the environment? and What role do greenhouse gases play in climate change, and how can we mitigate their effects?
Medicinal, Polymer, Geochemistry, Nuclear & Astrochemistry
1. State an essential question for medicinal chemistry and polymer chemistry.
• How do polymer structures affect their properties?
An essential question in medicinal chemistry is: How are drugs designed and developed for specific therapeutic purposes? An essential question in polymer chemistry is: What are polymers, and how do their structures affect their properties?
2. State an essential question for geochemistry.
• How do geological processes affect elements in the crust?
An essential question in geochemistry is: How do geological processes influence the distribution of elements in the Earth's crust?
3. State essential questions for nuclear chemistry and astrochemistry.
• What is the role of radioisotopes in medicine?
Essential questions in nuclear chemistry include: How do nuclear reactions differ from chemical reactions, and what are their applications? and What is the role of radioisotopes in medicine and industry? An essential question in astrochemistry is: What types of reactions occur in astronomical environments?
PART 3
Daily Life Applications of Chemistry
Organic, Inorganic & Analytical Chemistry
1. How is organic chemistry applied in daily life?
• What is the application of organic chemistry in medicine?
To treat diseases, organic chemists synthesize new medicines that interact with specific targets like proteins or enzymes.
2. How is inorganic chemistry used in daily life?
• What are lithium-ion batteries an example of?
Lithium-ion (Li-ion) batteries used as rechargeable batteries for electronics, toys, wireless headphones, handheld power tools, and electric vehicles are an application of inorganic chemistry.
3. How is analytical chemistry used in daily life?
• What is forensic chemistry an application of?
Forensic chemistry is an application of analytical chemistry. It involves examination of physical traces such as body fluids, bones, fibers, and drugs to identify unknown compounds. For example, drugs found in various colored powders are analyzed to determine their content.
Physical, Environmental & Polymer Chemistry
1. How is physical chemistry applied in daily life?
• What principle are vehicle batteries built on?
Batteries in our vehicles are built on the principle of electrochemistry, which is part of physical chemistry.
2. How is environmental chemistry used in daily life?
• How does environmental chemistry help in water purification?
Environmental chemistry is used to protect water that has been poisoned by soil and dust using different methods such as sedimentation, filtration, and disinfection.
3. What is the application of polymer chemistry in daily life?
• How are plastic bags made?
Polymer chemistry is used to make plastic bags. Small building blocks called monomers combine to form long chains known as polymers — one of these is polyethylene. Engineers and technicians use these discoveries to create bags that are durable, flexible, and easy to make.
PART 4
Science, Technology & Engineering — Worked Examples
Defining the Three Pillars
1. Define science, technology, and engineering.
• How is science defined in the context of chemistry?• What do chemical engineers do?
Science is the systematic process of constructing and organizing knowledge about the universe, seeking to understand the natural world. Technology is the process of applying scientific knowledge to practical applications, creating tools, machines, and systems. Engineering is the use of science and mathematics to design and construct systems, structures, and tools — chemical engineers develop manufacturing processes for chemicals, fuels, medicines, and polymers.
2. Differentiate between science, technology, and engineering.
• What is the difference between science and technology?
Science seeks to understand the natural world through systematic study. Technology applies scientific knowledge to create practical tools and systems. Engineering uses science and mathematics to design and build structures on a large scale.
Science (Understand) → Technology (Apply) → Engineering (Build)
Worked Examples (1.1 – 1.5)
1. With the help of an example, explain investigating the rusting of iron.
• Which chemical reactions cause rusting?
Scientists investigate the chemical reactions between iron, water, and oxygen that cause rust to form. Experiments are conducted to understand the factors influencing this process and help develop strategies to prevent rust.
2. Explain how science, technology, and engineering work together in harnessing solar energy.
• What is the role of engineers in solar power systems?
Scientists study the principles of photovoltaic cells to understand how sunlight is converted into electricity. Technologists develop solar panels based on these scientific principles. Engineers design and implement large-scale renewable energy systems — an electrical engineer designs wiring while a civil engineer designs infrastructure.
📝 Together, science, technology, and engineering contribute to the development and utilization of sustainable energy sources.
3. Explain how engineers design a water filtration system.
• What is the role of chemical and mechanical engineers in water filtration?
Chemical engineers help develop processes to remove contaminants from water, while mechanical engineers design physical components. Together, they create a solution to clean drinking water for a community — from understanding chemical reactions to solving practical problems through engineering.
4. Explain organic chemistry in action using the example of making french fries.
• What organic molecules are present in cooking oil?
The oil used to fry potatoes contains carbohydrates, which are organic molecules. Scientists study carbohydrates to learn how they work, food technologists extract oil from seeds, and chemical engineers design oil production equipment so oil is produced efficiently and safely for cooking.
5. Explain the science behind plastic bags.
• What is polyethylene?
Scientists study the small building blocks known as monomers. When monomers combine, they form long chains known as polymers. One of those long chains is polyethylene, one of the many polymers found in plastic bags. Engineers and technicians use these discoveries to create bags that are durable, flexible, and easy to make.
Key Vocabulary
Unit 1 Vocabulary
Important terms — learn these definitions for exam questions.
| Term | Definition |
|---|---|
| Chemistry | The science that investigates the materials of the universe and the changes they undergo |
| Green Chemistry | A model of chemical products and processes that reduce the use of hazardous substances |
| Organic Chemistry | Branch dealing with carbon-containing compounds (except carbonates, bicarbonates, oxides, carbides) |
| Inorganic Chemistry | Branch dealing with elements and their compounds except organic compounds |
| Physical Chemistry | Branch dealing with laws and theories to understand structure and changes of matter |
| Analytical Chemistry | Branch dealing with methods and instruments for determining composition of matter |
| Biochemistry | Branch dealing with physical and chemical changes that occur in living organisms |
| Environmental Chemistry | Branch dealing with toxic substances that pollute the environment |
| Industrial Chemistry | Branch dealing with large-scale production of chemical substances |
| Medicinal Chemistry | Branch studying interaction between drugs and biological targets |
| Polymer Chemistry | Branch studying polymers, their types, properties, and polymerization |
| Geochemistry | Branch studying chemical composition and transformation of elements in Earth's crust |
| Nuclear Chemistry | Branch dealing with changes that occur in atomic nuclei |
| Astrochemistry | Branch studying chemical processes in astronomical environments |
| Monomer | A small building-block molecule that combines with others to form a polymer |
| Polymer | A long chain formed by many monomers joined together, e.g., polyethylene |
| Forensic Chemistry | Application of analytical chemistry to examine physical traces and identify compounds |
| Electrochemistry | Branch of physical chemistry that explains how batteries work |
| Science | The systematic process of constructing and organizing knowledge about the universe |
| Technology | The process of applying scientific knowledge to practical applications |
| Engineering | The use of science and mathematics to design and construct systems, structures, and tools |
| Photovoltaic Cell | A device that converts sunlight directly into electricity |
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