CISCE ICSE Class 8 Chemistry Syllabus - Free PDF Download
CISCE Syllabus 2025-26 ICSE Class 8: The CISCE ICSE Class 8 Chemistry Syllabus for the examination year 2025-26 has been released by the Council for the Indian School Certificate Examinations, CISCE. The board will hold the final examination at the end of the year following the annual assessment scheme, which has led to the release of the syllabus. The 2025-26 CISCE ICSE Class 8 Chemistry Board Exam will entirely be based on the most recent syllabus. Therefore, students must thoroughly understand the new CISCE syllabus to prepare for their annual exam properly.
The detailed CISCE ICSE Class 8 Chemistry Syllabus for 2025-26 is below.
Academic year:
CISCE ICSE Class 8 Chemistry Revised Syllabus
CISCE ICSE Class 8 Chemistry Course Structure 2025-26 With Marking Scheme
| # | Unit/Topic | Weightage |
|---|---|---|
| 1 | Matter | |
| 2 | Physical and Chemical Changes | |
| 3 | Elements, Compounds and Mixtures | |
| 4 | Atomic Structure | |
| 5 | Language of Chemistry | |
| 6 | Chemical Reactions | |
| 6.1 | Chemical Reaction | |
| 6.2 | Types of Chemical Reactions | |
| 7 | Hydrogen | |
| 8 | Water | |
| 9 | Carbon and Its Compounds | |
| 9.1 | Allotropy in carbon | |
| 9.2 | Amorphous Forms of Carbon | |
| 9.3 | Carbon Dioxide | |
| 9.4 | Carbon Monoxide - A Compound of Carbon | |
| Total | - |
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Syllabus
1: Matter
CISCE ICSE Class 8 Chemistry Syllabus
- Matter (Substance)
- Experiment 1
- Experiment 2
- Experiment 3
- Experiment 4
- Substance (Matter)
- Physical Nature of matter
- Chemical properties
- Characteristics of Particles (Molecules) of Matter
- Characteristics of particles or matter
- Classification of Matter and Particle
- Experiment
- States of Matter
- Three States of Matter
- Comparison of Solids, Liquids, and Gases
- The Solid State
- The Solid State of Matter
- Characteristics of Solids
- The Liquid State
- The Liquid State of Matter
- Characteristics of Liquids
- The Gaseous State
- The Gaseous State of Matter
- Characteristics of Gases
- Kinetic Theory of Matter
- Change of State
- Introduction
- Definition: Change of State
- Freezing
- Condensation
- Activity
- Concept of Melting (Fusion)
- Melting (Fusion)
- Melting point
- Latent heat
- Latent heat of fusion
- Heating curve of ice during melting
- Change in volume on melting
- Effect of pressure on the melting point
- Effect of impurities on the melting point
- Concept of Evaporation
- Factors Affecting Evaporation
- How does Evaporation cause cooling?
- Concept of Condensation (Liquefaction)
- Concept of Freezing (Solidification)
- Introduction
- Melting and Freezing Point of Water
- Boiling and Condensation Points
- Concept of Desublimation (Deposition)
- Vaporisation or Boiling
- Definition: Vaporisation
- Definition: Boiling Point
- Example
- Changes in States of Water
- Experiment: Heating Curve for Water
- Sublimation
- Introduction
- Experiment
- Laws of Chemical Combination
- Introduction
- Experiment
2: Physical and Chemical Changes
CISCE ICSE Class 8 Chemistry Syllabus
- Changes-Physical and Chemical
- Chemical and Physical Changes
- Experiment
- Classification of Change: Slow and Fast Changes
- Classification of Change: Natural and Man-made Changes
- Classification of Change: Periodic and Non-periodic Changes
- Classification of Change: Reversible and Irreversible Changes
- Classification of Change: Physical Changes
- Chemical Reaction
- Definition: Chemical Change
- Definition: Reactants
- Definition: Products
3: Elements, Compounds and Mixtures
CISCE ICSE Class 8 Chemistry Syllabus
- Matter (Substance)
- Experiment 1
- Experiment 2
- Experiment 3
- Experiment 4
- Substance (Matter)
- Physical Nature of matter
- Chemical properties
- Natural substances
- Pure Substances
- Pure substance
- Characteristics of Pure substance
- Examples of Pure Substance
- Impure Substance
- Elements
- Experiment
- Elements
- Earth and Elements
- Non-Metals
- Definition: Non-Metals
- Definition: Metalloids or Semi-Metals
- Type of Element: Metalloid
- Metalloid
- General Properties of Metalloid
- Type of Elements: Noble Or Inert Gases
- Difference Between Metals, Non-metals, Metalloids, and Noble Gases
- Compound
- Introduction
- Experiment 1
- Experiment 2
- Mixture
- Introduction
- Separation of Unwanted Substances from Mixtures
- Activity
- Types of Mixtures
- Types of Mixtures
- Experiment 1
- Experiment 2
- Formation of Mixtures
- Separation of Mixtures
- Methods of Separation
- Handpicking Method
- Magnetic Separation Method
- Gravitation Method
- Solvent Extraction (Using a Separating Funnel Method)
- Introduction to Separation Using a Separating Funnel
- Experiment
- Sedimentation Method
- Decantation Method
- Filtration Method
- Centrifugation Method
- Centrifugation and Its Working
- Principle and Applications of Centrifugation
- Experiment
- Chromatography Method
- Introduction
- Experiment
- Diffusion Method
- Liquefaction Method
- Sublimation
- Introduction
- Experiment
4: Atomic Structure
CISCE ICSE Class 8 Chemistry Syllabus
- Atoms: Building Blocks of Matter
- Introduction of Atom
- Discovery of Charged Particles and the Structure of an Atom
- History of Atom
- Dalton’s Atomic Theory
- Introduction
- Dalton’s Atomic Theory
- Merits and Demerits
- Activity
- J. J. Thomson’s Atomic Model
- Discovery of Electrons
- Thomson’s Plum Pudding Model of the Atom
- Merits and Demerits
- Lord Rutherford’s Atomic model
- Introduction
- Rutherford’s Nuclear atomic model
- Merits and Demerits
- Discovery of Charged Particles in Matter
- Cathode Ray Tube (CRT) experiment
- Electrons (e)
- Electrons
- Discovery of Electrons
- Properties of Cathode rays
- Charge to Mass Ratio of Electron
- Charge on the Electron
- Protons (p)
- Protons
- Discovery of Protons
- Properties of Anode rays
- Nucleus
- Discovery of Nucleus
- Deflection of α-particle by a gold leaf
- Neutrons (n)
- Neutrons
- Discovery of Neutrons
- Properties of Neutrons
- Neils Bohr’s Model of an Atom
- Introduction
- Bohr’s stable orbit atomic model
- Merits and Demerits
- Structure of the Atom and Nucleus
- Origin
- Structure of an Atom
- Structure of Nucleus
- Atomic Number
- Mass Number
- Atomic Number (Z), Mass Number (A), and Number of Neutrons (n)
- Atomic number or Nuclear charge
- Nucleons
- Mass number
- Relationship between atomic number and mass number
- Representation of element
- Number of Neutrons (n)
- Atomic Mass
- Introduction of Atomic Mass
- Properties of Mass Number
- Determination of Relative Atomic Mass
- Isotopes
- Definition: Isotopes
- Examples
- Electronic Configuration of Atom
- Periodic Trends in the Modern Periodic Table
- Definition: Periodic Trends
- Definition: valency
- Variable Valency
- Ions (Radicals) and Its Types
- Radicals
- Formation of Radicals
- Types of Radicals
5: Language of Chemistry
CISCE ICSE Class 8 Chemistry Syllabus
- Language of Chemistry
- Laws of Chemical Combination
- Symbols Used to Represent Atoms of Different Elements
- Periodic Trends in the Modern Periodic Table
- Definition: Periodic Trends
- Definition: valency
- Variable Valency
- Ions (Radicals) and Its Types
- Radicals
- Formation of Radicals
- Types of Radicals
- Molecular Formula of Compounds
- Molecular Formula
- Valency
- Chemical Formula or Molecular Formula
- Chemical formulae of compounds : A recapitulation
- Significance of Molecular/Chemical Formulae
- Chemical Equations
- Definition: Chemical Equation
- Key Points: Chemical Equations
- Balancing Chemical Equation
- Key Points: Balancing Chemical Equations
6: Chemical Reactions
CISCE ICSE Class 8 Chemistry Syllabus
6.1 Chemical Reaction
- Chemical Reaction
- Definition: Chemical Change
- Definition: Reactants
- Definition: Products
- Indicators of a Chemical Change (Chemical Reaction)
- Conditions Necessary for Chemical Reactions
- How will you know that a chemical change has taken place?
- Close contact
- Attraction in the physical state of the reactants (through the solution)
- Heat energy
- Light energy
- Electricity
- Pressure
- Catalysts: Positive catalyst and Negative catalyst
6.2 Types of Chemical Reactions
- Types of Chemical Reactions > Combination Reaction
- Definition: Combination Reaction
- Chemical Equations: Combination Reaction
- Key Points: Combination Reaction
- Types of Chemical Reactions > Decomposition Reaction
- Definition: Decomposition Reaction
- Definition: Thermal Decomposition
- Key Points: Decomposition Reaction
- Types of Chemical Reactions > Single Displacement Reaction
- Definition: Single Displacement Reaction
- Key Points: Single Displacement Reactions
- Types of Chemical Reactions > Double Displacement Reaction
- Definition: Double Displacement Reaction
- Types of Double Displacement: Precipitation Reaction
- Types of Double Displacement: Neutralization Reaction
- Introduction of Neutralization
- Application of Neutralization
- Neutralization Reactions in Our Daily Life
- Reactivity Series of Metals
- Key Points: Reactivity Series of Metals
- Endothermic and Exothermic Processes
- Definition: Endothermic Process
- Definition: Exothermic Process
- Definition: Endothermic Reaction
- Definition: Exothermic Reaction
- Oxides
7: Hydrogen
CISCE ICSE Class 8 Chemistry Syllabus
- Hydrogen
- Hydrogen
- Discovery of Hydrogen
- Occurrence of Hydrogen
- Preparation of Hydrogen
- Recognition and Identification of Gases
- Manufacture of Hydrogen
- Manufacture of Hydrogen
- Bosch process
- By electrolysis of water
- Physical Properties of Hydrogen
- Chemical Properties of Hydrogen
- Tests for Hydrogen
- Uses of Hydrogen
- Chemical Properties of Carbon Compounds > Oxidation
- Definition: Oxidation Reaction
- Definition: Oxidants or Oxidising Agents
- Key Points: Oxidation
8: Water
CISCE ICSE Class 8 Chemistry Syllabus
- Water: Our Lifeline
- Introduction
- Importance of Water for Sustaining Life
- Importance of Water
- Sources of Water
- Biogeochemical Cycles (Nutrient Cycles)
- Availability of Water
- Physical Properties of Water
- Physical Properties of Water:
- Nature
- Boiling point
- The freezing point of water or melting point of ice
- Density
- Anomalous expansion of water
- Latent heat of fusion of ice
- Latent heat of vaporization of water
- Specific heat capacity
- Anomalous Expansion of Water
- Anomalous expansion of water
- Importance of Anomalous expansion of water
- Capacity of Water to Dissolve Substances - Saturated, Unsaturated, and Supersaturated Solutions
- Introduction to Solutions
- Suspension Solution
- Definition
- Suspension Solution
- Colloidal Solution
- Definition
- Colloidal Solution
- Understanding Compounds
- Experiment
- Difference Between Solution, Colloidal Solution, and Suspension Solution
- Crystals and Crystallisation
- Crystals
- Crystallisation
- Experiment: To prepare large crystals of copper sulphate.
- Hydrated and Anhydrous Substances
- Efflorescence, Hygroscopic, and Deliquescence Substances
- Efflorescence
- Deliquescence
- Hygroscopy
- Chemical Properties of Water
- Chemical properties
- Dissociation of water
- Amphoteric nature
- Oxidising and reducing nature
- Hydrolytic reactions
- Formation of hydrates with metal salts
- Classification of water: Soft and Hard Water
- Soft and Hard water
- Types of Hard water
- Temporary Hardness
- Permanent Hardness
- Advantage and Disadvantage of Hard Water
- Removal of Hardness of Water
- Softening of water
- Removal of temporary hardness
a) By boiling
b) Clark's method - Removal of permanent hardness
a) By washing soda method
b) lon-exchange/Permutit method
c) Calgon method
d) Synthetic resins method
⇒ Ion exchange resins are of two types
i) Cation exchange resins
ii) Anion exchange resins
- Degree of hardness of water
- Environmental Issues
- Water Pollution
- Definition: Water pollution
- Introduction
- Water Pollution
- Prevention and Control of Water Pollution
- Water Management (Conservation of Water)
- Waste Water Management
- Water - a Universal Solvent
- Universal Solvent
- Experiment: To show that ordinary tap water contains dissolved solids.
- Importance of dissolved salts in water.
- Air dissolved in water.
- Experiment: To show that tap water contains dissolved gases (air).
- Importance of air dissolved in water.
9: Carbon and Its Compounds
CISCE ICSE Class 8 Chemistry Syllabus
- Carbon: A Versatile Element
- Definition: Tetravalency of Carbon
- Definition: Catenation
- Key Points: Carbon-A Versatile Element
- Classification of Compounds of Carbon
- Organic Compounds of Carbon
- Inorganic Compounds of Carbon
- Comparison between organic and inorganic compounds
9.1 Allotropy in carbon
- Allotropes of Carbon > Graphite
- Graphite
- Experiment
- Uses of Graphite
- Allotropes of Carbon > Diamond
- Crystalline Forms
- Diamond
- Uses of Diamond
- Allotropes of Carbon > Fullerene
- Fullerene
- Uses of Fullerene
9.2 Amorphous Forms of Carbon
- Non-crystalline/Amorphous Forms: Coal
- Introduction
- Coal
- Types of Coal
- Non-crystalline/Amorphous Forms: Coke
- Coke
- Uses of Coke
- Non-crystalline/Amorphous Forms: Charcoal
- Charcoal
- Uses of Coal
- Non-crystalline/Amorphous Forms: Lamp Black (Soot)
- Non-crystalline/Amorphous Forms: Gas Carbon
9.3 Carbon Dioxide
- Preparation of Carbon Dioxide
- Recognition and Identification of Gases
- Properties of Carbon Dioxide
- Tests for Carbon Dioxide
- Importance of Carbon Dioxide
- Fire Extinguisher
- Introduction
- The Evolution and Functionality of CO₂ Based Fire Extinguishers
- Working and Application
- Carbon Dioxide
- Carbon Dioxide: Properties and Importance
- Experiment
- Physical and Chemical Properties
- Uses of Carbon Dioxide
- Green House Effect
- Preventive Measures of Green House Effect
- Preventive Measures of Global Warming
- Cause of Increased Percentage of Carbon Dioxide in the Atmosphere
- Steps to Balance Carbon Dioxide in the Atmosphere
9.4 Carbon Monoxide - A Compound of Carbon
- Carbon Monoxide
- Formation of Carbon Monoxide and Its Addition to the Atmosphere
- Harmful Effects of Carbon Monoxide
- Precautions and Remedies for Carbon Monoxide Poisoning
- Reducing Action of Carbon Monoxide
