मराठी
Tamil Nadu Board of Secondary EducationSSLC (English Medium) Class 8
पाठ्यपुस्तक उत्तरे६९४४
संकल्पना स्पष्टीकरण२८४
अभ्यासक्रम

Science SSLC (English Medium) Class 8 Tamil Nadu Board of Secondary Education Syllabus 2026-27

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Tamil Nadu Board of Secondary Education Class 8 Science Syllabus - Free PDF Download

Tamil Nadu Board of Secondary Education Syllabus 2026-27 Class 8: The Tamil Nadu Board of Secondary Education Class 8 Science Syllabus for the examination year 2026-27 has been released by the Tamil Nadu Board, Tamil Nadu Board of Secondary Education. 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 2026-27 Tamil Nadu Board of Secondary Education Class 8 Science Board Exam will entirely be based on the most recent syllabus. Therefore, students must thoroughly understand the new Tamil Nadu Board of Secondary Education syllabus to prepare for their annual exam properly.

The detailed Tamil Nadu Board of Secondary Education Class 8 Science Syllabus for 2026-27 is below.

Academic year:

Tamil Nadu Board of Secondary Education Class 8 Science Revised Syllabus

Tamil Nadu Board of Secondary Education Class 8 Science Course Structure 2026-27 With Marking Scheme

#Unit/TopicWeightage
1  Measurement 
2  Force and Pressure 
3  Light 
4  Heat 
5  Electricity 
6  Sound 
7  Magnetism 
8  Universe and Space Science 
9  Matter Around Us 
10  Changes Around Us 
11  Air 
12  Atomic Structure 
13  Water 
14  Acids and Bases 
15  Chemistry in Everyday Life 
16  Microorganisms 
17  Plant Kingdom 
18  Organisation of Life 
19  Movements in Animals 
20  Reaching the Age of Adolescence 
21  Crop Production and Management 
22  Conservation of Plants and Animals 
23  Libre Office Calc 
 Total -
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Syllabus

1 Measurement
2 Force and Pressure
  • Force  
    • Definition: Force
    • Formula: Force
    • Key Points: Force
  • Effect of Force  
    • A Force can change the State of motion
    • Force can change the shape of an object
    • Stops or tries to stop a moving body
    • Changes or tries to change the direction of motion of a moving body
    • Like parallel forces effect
    • Unbalanced forces effect
    • Unlike parallel forces effect
  • Thrust and Pressure  
    • Introduction
    • Unit of pressure
    • Experiment
  • Factors Affecting Pressure  
  • Atmospheric Pressure  
  • Measurement of Atmospheric Pressure  
    • Mercury Barometer (Simple Barometer)  
  • Buoyancy Force (Upthrust Force)  
    • Introduction
    • Experiment 1
    • Experiment 2
  • Pressure of liquid  
    • Introduction
    • Experiment 1
    • Experiment 2
  • Pascal’s Law  
  • Application of Pascal’s Law  
    • Applications of Pascal's law
    1. Hydraulic press
    2. Hydraulic lift
    3. Hydraulic brakes
  • Surface Tension  
    • Surface Tension
    • Force due to surface tension
    • Factors affecting surface tension
      1) Nature of liquid
      2) Impurities
      3) Temperature
      4) Electrification
    • Applications of surface tension
  • Viscous Force or Viscosity  
    • Viscosity
    • Newton's law of viscosity
    • Coefficient of viscosity
    • Applications of coefficient of viscosity
  • Force of Friction  
  • Types of Friction>Rolling Friction  
    • Introduction
    • Definition: Rolling Friction
    • Characteristics
    • Comparison of Friction Types
    • Advantages of Friction
    • Disadvantages of Friction
    • Methods of Reducing Friction
    • Real-Life Examples
  • Increasing and Reducing Friction  
3 Light
4 Heat
  • Heat  
    • Introduction
    • Units of Heat
  • Effects of Heat  
  • Transfer of Heat  
  • Conduction  
    •  Definition: Conduction
    • Experiment
    • Mechanism of Conduction
    • Good conductors 
    • Bad conductors
  • Convection  
    • Convection: Convection currents
    • Experiment
    • Mechanism of Convection
    • Definition: Convection 
    • Definition: Convection currents 
  • Environmental Issues  
  • Calorimetry  
    • Introduction
    • Formula Derivation
    • Example  
  • The Temperature and a Thermometer  
    • Introduction
    • Unit of Temperature
    • Experiment: 1
    • Experiment: 2
  • Scales of Thermometers  
    1. Fahrenheit scale
    2. Celsius temperature scale
    3. Kelvin scale (Absolute scale)
    • Relationship between the three scales of temperature
    • Conversion of Temperature from celsius scale to kelvin scale and vice-versa
  • Specific Heat Capacity  
    • Definition: Specific Heat Capacity
    • Formula: Specific Heat Capacity
    • Key Points: Specific Heat Capacity
  • Thermostat  
  • Thermos Flask (Dewar Flask)  
    • Introduction
    • Structure and Working
    • Function of the thermos flask
5 Electricity
  • Electricity  
  • Structure of the Atom and Nucleus  
    • Origin
    • Structure of an Atom
    • Structure of Nucleus
    • Atomic Number
    • Mass Number
  • Electric Charge  
    • Key Points: Electric Charge
  • Electric Force  
  • Electric Field  
    • Definition: Electric Field
    • Derivation
    • DImensional Formula
    • Intensity of Electric Field
  • Transfer of Charges  
    • Origin of an Electric Charge
    • Experiment
  • Direction of the Electric Current - Conventional and Electronic Flow  
  • Flow of Charges (Electrons) Between Conductor  
  • Electroscope  
  • Lightning and Lightning Safety  
    • Introduction
    • Causes of Lightning
    • Precautions to Stay Safe from Lightning
  • Electric Circuit  
    • Key Points: Electric Circuit
  • Types of Circuits: Simple Circuit  
  • Types of Circuits: Series Circuit  
  • Types of Circuits: Parallel Circuit  
  • Effects of Electric Current  
    • Chemical Effects of Electric Current  
      • Chemical effect of electric current
      • Application of Chemical effect of electric current
      1. Electroplating
  • Heating Effect of Electric Current  
    • Definition: Heating Effect of Electric Current
    • Key Points: Heating Effect of Electric Current
6 Sound
7 Magnetism
8 Universe and Space Science
9 Matter Around Us
10 Changes Around Us
  • Chemical Reaction  
    • Definition: Chemical Change
    • Definition: Reactants
    • Definition: Products
  • Factors Determining Chemical Changes  
  • Effects of Chemical Changes: Biological Effects  
  • Effects of Chemical Changes: Environmental Effects  
  • Effects of Chemical Changes: Production of Heat, Light, Sound and Pressure  
11 Air
12 Atomic Structure
13 Water
  • Water: Our Lifeline  
    • Introduction
    • Importance of Water for Sustaining Life
  • Composition of Water  
    • Introduction
    • Water Cycle
  • Electrolysis of Water  
    • Introduction
    • Experiment
  • Preparation of Water  
  • Physical Properties of Water  
    • Physical Properties of Water:
    1. Nature
    2. Boiling point
    3. The freezing point of water or melting point of ice
    4. Density
    5. Anomalous expansion of water
    6. Latent heat of fusion of ice
    7. Latent heat of vaporization of water
    8. Specific heat capacity
  • Chemical Properties of Water  
    • Chemical properties
    1. Dissociation of water
    2. Amphoteric nature
    3. Oxidising and reducing nature
    4. Hydrolytic reactions
    5. Formation of hydrates with metal salts
  • 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.
  • Potable Water  
  • Purification of Water  
  • Classification of water: Soft and Hard Water  
    • Soft and Hard water
    • Types of Hard water
    1. Temporary Hardness
    2. Permanent Hardness
  • Advantage and Disadvantage of Hard Water  
  • Removal of Hardness of Water  
    • Softening of water
    1. Removal of temporary hardness
      a) By boiling
      b) Clark's method
    2. 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  
  • Prevention and Control of Water Pollution  
  • Water Pollution in Tamilnadu  
14 Acids and Bases
15 Chemistry in Everyday Life
16 Microorganisms
17 Plant Kingdom
18 Organisation of Life
19 Movements in Animals
20 Reaching the Age of Adolescence
  • Secondary Sex Characteristics  
  • Role of Hormones in Initiating Reproductive Function  
  • Reproductive Phase of Life in Humans  
  • Concept of Reproductive Health  
    • Key Points: Reproductive Health
  • Nutritional Needs of Adolescents  
  • Personal Hygiene for Adolescence  
21 Crop Production and Management
  • Crop and Its Types  
  • Soil Formation and Preparation for Agriculture  
  • Agricultural Implements  
  • Food Storage and Conservation of the Environment  
  • Manuring (Biomanuring)  
  • Fertilizers  
    • Introduction of Fertilizers
    • Harmful Effects of Chemical Fertilizers
    • Protection of crops
    • Steps for Storing Grain
    • Steps to Protect Grain from Damage
  • Methods to Replenish Nutrients in Your Soil  
  • Improved methods of agriculture  
    • Improved seeds
    • Irrigation
    • Modern methods of irrigation
    • Modern Irrigation Methods
  • Food Security  
    • Introduction of Food security
    • Importance of Food Security
  • Agricultural Assistance Programme  
  • Weeding  
  • Harvesting of Crops  
  • Storage of Food Grains  
  • Rotation of Crops  
  • Seed Bank  
  • Bio-indicators  
  • Agriculture Research Institutions  
  • Foliar Sprays  
  • Bio-control Methods  
22 Conservation of Plants and Animals
  • Deforestation and Its Causes  
  • Afforestation  
  • Reforestation  
  • Causes for Endangerment  
  • Saving Endangered Species  
    • Saving Endangered Species
    • Government Initiatives to protect Endangered Species
  • Conservation of Wildlife  
  • PBR (People’s Bio-diversity Register)  
  • Biomagnification  
  • Animal Welfare Organisations  
23 Libre Office Calc
  • Libre Office Calc  
  • Spreadsheet  
  • Worksheet and Workbook  
  • Merge Cells  
  • Generate Auto Numbers  
  • Functions  
  • Operators in Libre Office Calc  
  • Working with Charts  

Textbook SolutionsVIEW ALL [1]

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