CBSE Class 8 Science Syllabus - Free PDF Download
CBSE Syllabus 2024-25 Class 8: The CBSE Class 8 Science Syllabus for the examination year 2024-25 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 2024-25 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 2024-25 is below.
Academic year:
CBSE Class 8 Science Revised Syllabus
CBSE Class 8 Science and their Unit wise marks distribution
CBSE Class 8 Science Course Structure 2024-25 With Marking Scheme
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Syllabus
1 Crop Production and Management
- Crop and Its Types
- The Green Revolution
- Introduction of Green Revolution
- Role of Dr. M. S. Swaminathan
- 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
- Microorganisms (Microbes) and Microbiology
- Introduction of Microorganisms
- Types of Microorganisms
- Classification of Microorganisms
- Experiment
- Nature of microorganisms
- Growth of microorganisms
- 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 Cycle
- Nitrogen Cycle
3 Coal and Petroleum
- Energy Resources
- Conventional energy resources or non-renewable energy resources
- Carbon: A Versatile Element
- Introduction
- Occurrence of Carbon
- Characteristics of Carbon
- 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
- Natural Gas
- Introduction
- Characteristics of CNG
- Some Natural Resources Are Limited
3 Synthetic Fibres and Plastics
- Fibre
- Fabrics
- Man-made Fibre: Synthetic Fibres
- Rayon
- Nylon
- Dacron, Terylene, Terene
- Man-made Fibre: Plastics
- Materials
- Plastic: A Manmade Material
- Properties of Plastic
- Biodegradable Plastics
- Harmful Effects of Plastics
- Recycling of Plastic
4 Combustion and Flame
- Combustion
- Precautions and Safety Measures
- Types of Combustion
- Flame
- Fuel
- Types of Fuel
- Fuel Efficiency
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
- Types of Element: Metals
- Introduction
- General Properties of Metals
- Experiment
- Physical Properties of Metals
- Physical Properties
- Activity
- Chemical Properties of Metal
- Chemical Properties
- Experiment
- Types of Element: Non-metal
- Introduction
- General Properties of Non-Metals
- Physical Properties of Non-metal
- Chemical Properties of Non-metal
5 Conservation of Plants and Animals
- Deforestation and Its Causes
- Consequences of Deforestation
- Conservation of Forest
- Conservation of Wildlife
- Biosphere Reserve
- Nilgiri Biosphere Reserve
- Nanda Devi Biosphere Reserve
- Sunderbans Biosphere Reserve
- Gulf of Mannar Biosphere Reserve
- Flora and Fauna of Forest Ecosystem
- Endemic Species
- Wildlife Sanctuary
- National Park
- Red Data Book
- Migration
- Recycling of Paper
- Reforestation
6 Reproduction in Animal
- Reproduction
- Introduction
- Reproduction in Plants
- Importance of Variation
- Reproduction in Lower and Higher Animals
- Organisms Create Copies of Themselves
- Mode of Reproduction in Animal
- Mode of Reproduction in Animal:
- Asexual reproduction
- Sexual reproduction
- Sexual Reproduction in Animals
- Human Reproduction
- The Male Reproductive System
- The male reproductive system
- Testes
- Accessory ducts
- Accessory glands
- External genitalia
- Histology of seminiferous tubules
- Puberty / Sexual maturity in Males
- The Female Reproductive System
- Female Reproductive System
- Ovaries
- Accessory ducts
- External genitalia
- Accessory glands
- Mammary glands
- Puberty / Sexual maturity in Females
- The Male Reproductive System
- Gametogenesis
- Gametogenesis
- Spermatogenesis
- Structure of human spermatozoan
- Oogenesis
- Structure of ovum
- Fertilization in Human
- Fertilization
- Mechanism of fertilization
- Effect of fertilization
- Significance of fertilization
- Sex determination
- Embryonic Development in Human
- Cleavage
- Blastulation
- Embryo Formation in Viviparous and Oviparous Animals - Young Ones to Adults
- Asexual Reproduction
- Asexual Reproduction in Animal
- Asexual Reproduction in Animal
- Modes of asexual reproduction
- Gemmule Formation
- Budding
- Regeneration
- Asexual Reproduction in Animal
7 Reaching the Age of Adolescence
- Adolescence and Puberty
- Changes at Puberty
- Secondary Sex Characteristics
- Role of Hormones in Initiating Reproductive Function
- Reproductive Phase of Life in Humans
- Sex Determination
Sex Determination
- Sex Determination in human beings
- Sex Determination in birds
- Sex Determination in honey bees
- Hormones Other than Sex Hormones
- Role of Hormones in Completing the Life History of Insects and Frogs
- Reproductive Health
- Reproductive and Child Health Care (RCH) Programme
- Goals of RCH Programmes
- Reproductive and Child Health Care (RCH) Programme
- Nutritional Needs of Adolescents
- Personal Hygiene for Adolescence
8 Cell - Structure and Functions
- Cell: Structural and Functional Unit of Life
- The Fundamental Unit of Life: Cell
- Discovery of Cells
- The Invention of the Microscope and the Discovery of Cell
- Organisms Show Variety in Cell Number, Shape and Size
- Cell Numbers
- Cell Size
- Smallness of Cells: A Greater Efficiency
- Cell Shapes: To suit Functional Requirement
- Structure of the Cell
- Plasma Membrane
- Structure and Function of the Plasma Membrane
- Cellular Transport Mechanisms: Energy-Dependent and Passive Processes
- Semi-permeable Membrane (Cell Membrane)
- Cell Wall - “Supporter and Protector”
- Nucleus - “Brain” of the Cell
- Introduction
- Experiment
- Cytoplasm - “Area of Movement”
- Plastids
- Non-living Substances Or Cell Inclusion
- Cell Inclusion
- Granule
- Vacuole
- Functions of Vacuole
- Plasma Membrane
- Prokaryotic and Eukaryotic Cell
- Characteristics of Cells
- Types of Cells
- Difference between Prokaryotic and Eukaryotic cells
- Plant Cell and Animal Cell
- Plant Cell
- Animal Cell
- Difference between Plant Cell and Animal Cell
8 Force and Pressure
- 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 Force: Contact Force
- Introduction of Contact Force
- Types of Contact Force
- Types of Force: Non-Contact Force
- Introduction of Non-Contact Forces
- Types of Non-Contact Forces
- Experiment
- 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
- Kinds of Friction
- Fluid Friction
10 Sound
- Sound
- Introduction
- Sound waves
- 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
- Structure of Human Ear
- Function of Human Ear
- Characteristics of a Sound Wave
- Sound Wave
- Parts of a Sound Wave
- Important Sound Wave Properties
- Oscillator, Oscillation and Oscillatory Motion
- Introduction
- Experiment 1
- Experiment 2
- Properties of Sounds
- Properties of Sound
- Activity
- Experiment
- Loudness and Intensity
- Pitch (or shrillness) and frequency
- Audibility and Range
- Audibility and Range
- Bats and Their Navigation Mechanism
- Experiment
- Uses of Different Types of Sound
- Noise and Music
- Environmental Issues
- Noise Pollution
11 Chemical Effects of Electric Current
- Conductor of Electricity: Liquid
- Electricity
- Conductors and Insulators
- Conductors
- Insulators (Non-Conductors)
- 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
- Introduction
- Experiment
- 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
- Light
- Reflection of Light
- Introduction
- Activity
- Experiment
- Terms Used in Reflection of Light
- Law of Reflection of Light
- Laws of Reflection
- Experiment
- Types of Reflection
- Multiple Reflections
- Prism
- Dispersion of Light Through Prism and Formation of Spectrum
- Dispersion of Light Through a Prism
- Newton’s Disc and the Colours of Light
- Wavelength and Speed of Light in Different Media
- Activity 1
- Activity 2
- Activity 3
- Human Eye
- Structure and Components
- Photoreceptors and Eye Muscles
- 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
- The Solar System
- Other Heavenly Bodies of the Solar System
- Satellites
- Asteroids
- Dwarf planets
- Comet
- A meteor
18 Pollution of Air and Water
- Pollution and Its Types
- Pollution
- Types of Pollution
- Environmental Issues
- Air Pollution and Its Causes
- Air Pollution
- Causes of Air Pollution
- Reasons of Air Pollution
- Ozone Layer: The Protective Shell
- Air Pollution and Its Causes
- Case Study: The Taj Mahal
- Green House Effect
- Green House Effect
- Green House gases
- Preventive Measures of Green House Effect
- Global Warming
- Global Warming
- Causes of Global warming
- Effect of Global Warming
- Preventive Measures of Global Warming
- Prevention of Air Pollution
- Water Pollution and Its Causes
- Water Pollution
- Types of Water Pollutants
- Causes of Water Pollution
- Reasons of Water Pollution
- Case Study: Ganga Pollution and Ganga Action Plan
- Potable Water
- Purification of Water
- Prevention of Water Pollution
