CBSE Class 8 Science Syllabus - Free PDF Download
CBSE Syllabus 2025-26 Class 8: The CBSE Class 8 Science Syllabus for the examination year 2025-26 has been released by the Central Board of Secondary Education, CBSE. 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 CBSE Class 8 Science Board Exam will entirely be based on the most recent syllabus. Therefore, students must thoroughly understand the new CBSE syllabus to prepare for their annual exam properly.
The detailed CBSE Class 8 Science Syllabus for 2025-26 is below.
Academic year:
CBSE Class 8 Science Revised Syllabus
CBSE Class 8 Science Course Structure 2025-26 With Marking Scheme
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Syllabus
1 Crop Production and Management
- Crop and Its Types
- Soil Formation and Preparation for Agriculture
- Agricultural Implements
- 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
- Weeding
- Harvesting of Crops
- Storage of Food Grains
- Animal Products used as Food
2 Microorganisms: Friend and Foe
- Where Do Microorganisms Live?
- Useful micro-organisms
- Experiment
- Uses of Microorganisms:
- Harmful Microorganisms
- Food and Micro-organisms
- Methods of Food Preservation
- Methods of Food Preservation
- Methods of Food Protection
- Nitrogen Fixation
- Biogeochemical Cycles (Nutrient Cycles)
3 Synthetic Fibres and Plastics
- Fibre
- Fabrics
- Man-made Fibre: Synthetic Fibres
- Man-made Fibre: Plastics
- Materials
- Plastic: A Manmade Material
- Properties of Plastic
- Biodegradable Plastics
- Harmful Effects of Plastics
- Recycling of Plastic
3 Coal and Petroleum
- Energy Resources > Conventional energy resources or non-renewable energy resources
- Carbon: A Versatile Element
- Definition: Tetravalency of Carbon
- Definition: Catenation
- Key Points: Carbon-A Versatile Element
- Special Features of Carbon
- Catenation
- Tetravalency
- Multiple Bonds
- Isomerism
- Allotropy
- Crystalline forms of Carbon
- Non-crystalline / Amorphous forms
- Non-crystalline/Amorphous Forms: Coal
- Introduction
- Coal
- Types of Coal
- Extraction of Coal
- Non-crystalline/Amorphous Forms: Coke
- Coke
- Uses of Coke
- Petroleum
- Refining of Crude Petroleum
- Conventional Sources of Energy > Natural Gas
- Some Natural Resources Are Limited
4 Materials: Metals and Non-metals
- Various uses of changes in physical state
- Properties of substances
- Activity 1
- Activity 2
- Activity 3
- Activity 4
- Activity 5
- Activity 6
- Activity 7
- Metals
- Earth and Elements
- Physical Properties of Metals
- Key Points: Physical Properties of Metals
- Chemical Properties of Metal
- Definition: Electropositive Elements
- Key Points: Chemical Properties of Metal
- Non-Metals
- Definition: Non-Metals
- Definition: Metalloids or Semi-Metals
- Physical Properties of Non-metal
- Key Points: Physical Properties of Non-metal
- Chemical Properties of Non-metal
- Definition: Electronegative Elements
- Chemical Equation: Reaction of Nonmetals with Oxygen
- Chemical Equation: Reaction of Nonmetals with Water
- Chemical Equation: Reaction of Dilute Acids with Nonmetals
- Chemical Equation: Reaction of Nonmetals with Hydrogen
4 Combustion and Flame
- Chemical Properties of Carbon Compounds > Combustion
- Key Points: Combustion
- Precautions and Safety Measures
- Types of Combustion
- Flame
- Fuel
- Types of Fuel
- Fuel Efficiency
5 Conservation of Plants and Animals
- Deforestation and Its Causes
- Consequences of Deforestation
- Conservation of Forests
- Conservation of Wildlife
- Endemic Species
- Migration
- On the basis of Region:
A. Internal migration
B. External Migration - Classification by Duration:
A. Short-term
B. Long-Term
- On the basis of Region:
- Recycling of Paper
- Reforestation
6 Reproduction in Animal
- Fertilization in Human
- Definition: Fertilization in Human
- Key Points: Fertilization in Human
- Embryo Formation in Viviparous and Oviparous Animals - Young Ones to Adults
7 Reaching the Age of Adolescence
- Secondary Sex Characteristics
- Role of Hormones in Initiating Reproductive Function
- Reproductive Phase of Life in Humans
- Hormones Other than Sex Hormones
- Role of Hormones in Completing the Life History of Insects and Frogs
- Nutritional Needs of Adolescents
- Personal Hygiene for Adolescence
8 Cell - Structure and Functions
- The Invention of the Microscope and the Discovery of Cell
- Cell Organelles
- Plastids
- Key Points: Plastids
- Plastids
- Non-living Substances Or Cell Inclusion
- Cell Inclusion
- Granule
- Vacuole
- Functions of Vacuole
- Key Points: Vacuoles & Granules
- Prokaryotic and Eukaryotic Cell
- Characteristics of Cells
- Types of Cells
- Difference between Prokaryotic and Eukaryotic cells
- Plant Cell Vs Animal Cell
8 Force and Pressure
- Force
- Definition: Force
- Formula: Force
- Key Points: Force
- Force - Push or Pull
- Forces Are Due to an Interaction
- Exploring Forces
- A Force Can Change the State of Motion
- Force Can Change the Shape of an Object
- 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
- Types of Forces>Contact and Non-Contact Forces
- Introduction
- Definition: Contact Force
- Definition: Non-Contact Force
- Characteristics
- Understanding Contact Forces
- Understanding Non-Contact Forces
- Experiment
- Significance
- Thrust and Pressure
- Introduction
- Unit of pressure
- Experiment
- Pressure of liquid
- Introduction
- Experiment 1
- Experiment 2
- Factors Affecting Liquid Pressure
- Atmospheric Pressure
9 Friction
- Force of Friction
- Factors Affecting Friction
- Friction - A Necessary Evil
- Effects of Friction
- Increasing and Reducing Friction
- Fluid Friction
10 Sound
- Sound Waves
- Definition: Audible Range of Frequency
- Definition: Ultrasonic
- Definition: Infrasonic
- Definition: Amplitude of the Wave
- Definition: Time Period of the Wave
- Definition: Frequency of the Wave
- Definition: Wavelength
- Definition: Wave Velocity
- Definition: Longitudinal Wave
- Definition: Transverse Wave
- Production of Sound
- Introduction
- Production of Sound Using a Tuning Fork
- Experiment
- Sound and Music
- Sound and Music
- Experiment
- Sound Produced by Humans
- Propagation of Sound
- Introduction
- Experiment 1
- Experiment 2
- Sound Need a Medium to Travel
- Human Ear
- Key Points: Human Ear
- Oscillator, Oscillation and Oscillatory Motion
- Introduction
- Experiment 1
- Experiment 2
- Characteristics of Sound
- Loudness and Intensity
- Definition: Loudness
- Key Points: Loudness and Intensity
- Pitch and frequency
- Definition: Pitch
- Audibility and Range
- Audibility and Range
- Bats and Their Navigation Mechanism
- Experiment
- Uses of Different Types of Sound
- Loudness and Intensity
- Music and Noise
- Definition: Music
- Definition: Noise
- Environmental Issues
- Noise Pollution
- Definition: Noise Pollution
- Introduction
- Noise Pollution
11 Chemical Effects of Electric Current
- Conductor of Electricity: Liquid
- Electricity
- Electrical Conduction in Solids
- Introduction
- Conductors
- Insulators
- Semiconductors
- Table
- Concept of Electrical Conductivity
- Classification of Semiconductors
- Effects of Electric Current
- Chemical Effects of Electric Current
- Chemical effect of electric current
- Application of Chemical effect of electric current
- Electroplating
- Chemical Effects of Electric Current
12 Some Natural Phenomena
- Force of Friction
- Electric Charge
- Key Points: Electric Charge
- Types of Charges and Their Interaction
- Transfer of Charges
- Origin of an Electric Charge
- Experiment
- Electroscope
- Lightning and Lightning Safety
- Introduction
- Causes of Lightning
- Precautions to Stay Safe from Lightning
- Earthquake
- Introduction
- Focus and Epicenter
- Intensity of Earthquakes
- Types of Seismic Waves
- Measuring Earthquakes
- Causes and Effects of Earthquakes
- Precautions During an Earthquake
- Earthquake Resistant / Proof Buildings
- Modern Equipment for Earthquake Detection
- Protection Against Earthquakes
13 Light
- Climatic Factors > Light
- Reflection of Light
- Introduction
- Activity
- Experiment
- Key Points: Reflection of Light
- Terms Used in Reflection of Light
- Law of Reflection of Light
- Laws of Reflection
- Experiment
- Types of Reflection
- Multiple Reflections
- Prism
- Definition: Prism
- Dispersion of Light
- Definition: Dispersion
- Definition: Spectrum
- Key Points: Dispersion of Light
- The Human Eye
- Key Points: The Human Eye
- Care of the Eyes
- Visual Impairment and Braille System
17 Star and Solar System
- Moon and Its Phases
- Moon
- Phases of Moon
- The lunar month and days (tithi)
- Stars and Their Types
- Stars
- Lifecycle of Stars
- Types of Stars
- Constellation
- Celestial Patterns: Constellations, Zodiac Signs, and Nakshatras
- Key Constellations and their Visibility
- Activity
- Our Solar System
- Other Heavenly Bodies of the Solar System
- Satellites
- Asteroids
- Dwarf planets
- Comet
- A meteor
18 Pollution of Air and Water
- Pollution
- Definition: Pollution
- Definition: Pollutant
- Case Study: The Taj Mahal
- Green House Effect
- Preventive Measures of Green House Effect
- Preventive Measures of Global Warming
- Case Study: Ganga Pollution and Ganga Action Plan
- Potable Water
- Purification of Water
