CISCE ICSE Class 8 Biology Syllabus - Free PDF Download
CISCE Syllabus 2025-26 ICSE Class 8: The CISCE ICSE Class 8 Biology 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 Biology 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 Biology Syllabus for 2025-26 is below.
Academic year:
CISCE ICSE Class 8 Biology Revised Syllabus
CISCE ICSE Class 8 Biology Course Structure 2025-26 With Marking Scheme
| # | Unit/Topic | Weightage |
|---|---|---|
| 1 | Transportation in Plants | |
| 2 | Reproduction in Plants | |
| 3 | Reproduction in Humans | |
| 4 | Ecosystems | |
| 5 | Human Body: Endocrine System | |
| 6 | Human Body: Circulatory System | |
| 7 | Human Body: Nervous System | |
| 8 | Health and Hygiene | |
| 9 | Food Production | |
| Total | - |
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Syllabus
1 Transportation in Plants
- Transport System in Plants
- Permanent Tissue
- Absorption and Conduction of Water and Minerals
- Diffusion
- Definition: Diffusion
- Osmosis
- Definition: Osmosis
- Diffusion
- Forces Contributing to Ascent of Sap
- Root Pressure
- Definition: Root Pressure
- Definition: Guttation
- Concept of Transpiration
- Definition: Transpiration
- Factors Affecting the Rate of Transpiration
- Significance of Transpiration
2 Reproduction in Plants
- Sexual Reproduction in Plants
- Definition: Bisexual Flower
- Definition: Unisexual Flower
- Definition: Pedicellate Flower
- Definition: Sessile Flower
- Key Points: Sexual Reproduction in Plants
- Pollination
- Definition: Pollination
- Fertilisation in Flowering Plants
- Artificial Pollination
3 Reproduction in Humans
- Fertilization in Human
- Definition: Fertilization in Human
- Key Points: Fertilization in Human
- Pregnancy in Humans
4 Ecosystems
- Forests: Our Lifeline
- Forest Biology
- Forest Biodiversity
- Crown
- Canopy
- Understorey
- Forest Ecosystem
- Spatial pattern: Stratification and zonation
- Food Chain
- Definition: Food Chain
- Concept of Food Chain
- Advantages of Food Chain
- Food Web
- Definition: Food Web
- Concept of Food Web
- Advantages of Food Web
- Energy Pyramid
- Trophic Level
- Pyramid of Energy
- Risks to Ecosystem
- Need to Restore and Conserve the Ecosystems
5 Human Body: Endocrine System
- Chemical Coordination
- Human Endocrine System
- Definition: Endocrine System
- Human Endocrine Glands
- Thyroid Gland
- Key Points: Thyroid Gland
- Adrenal Gland (Suprarenal Gland)
- Key Points: Adrenal Glands
- Pancreas (Islets of Langerhans)
- Definition: Islets of Langerhans
- Introduction
- Function of Pancreas
- Key Points: Pancreas
- Pituitary Gland or Hypophysis Gland
- Key Points: Pituitary Gland
- Thyroid Gland
- Concept of Adolescence
- Introduction
- Meaning
- Stages of Adolescence
- Development of Sexual and Secondary Sexual Characters
- Physical Changes during Adolescence
- Emotional and Social Changes
- Adolescence as a Phase
- Key Points: Adolescence
- Physical Changes
- Adolescence and the Related Psychological Changes
- Types of Hygiene: Personal Hygiene
- Personal Hygiene
- Major aspect of personal hygiene
- Cleanliness
- Physical exercise
- Rest and sleep
- Healthy habits
- Stress Management
- Introduction
- Laughter Clubs and Communication
- Hobbies, Music and Outdoor Games
- Exercise, Yoga and Relaxation
- Life Skills and Positive Thinking
- Nature and Social Health
- When Personal Methods Are Not Enough
- NGOs and Government Support
- Key Points: Stress Management
6 Human Body: Circulatory System
- Circulation in Animals
- Fluids in Our Body
- Definition: Closed Blood Circulatory System
- Definition: Open Blood Circulatory System
- Key Points: Fluids in Our Body
- Blood Circulatory System
- Human Heart
- Structure of the Heart
- Layers of the Heart Wall
- Chambers of the Heart
- Definition: Pericardium
- Key Points: The Heart
- Blood Vessels
- Blood Vessels: Structure and Functions
- Capillaries
- Definition: Artery
- Definition: Vein
- Definition: Arteriole
- Definition: Venule
- Circulation of Blood in the Heart (Functioning of Heart)
- Introduction
- Experiment
- Key Points: Circulation of Blood in the Heart
- Pacemaker
- Key Points: Pacemaker
- Working mechanism of human heart
- Cardiac Cycle
- Atrial systole (AS)
- Ventricular systole (VS)
- Cardiac output (CO)
- Types of Closed Circulation
- Pulmonary and Systemic Circulation (Double Circulation)
- Tissue Fluid (Or Intercellular Fluid)
- Definition: Tissue Fluid
- Lymph and Lymphatic System
- Definition: Lymph
- Key Points: Lymph and Lymphatic System
- Tissue Fluid (Or Intercellular Fluid)
- Blood Transfusion and Blood Groups (ABO and Rh system)
- Definition: Blood Transfusion
- Definition: Blood Donor
- Definition: Blood Recipient
- Definition: Antigens
- Definition: Antibodies
- Definition: Universal Donor
- Definition: Universal Recipient
- Blood Groups
- Rh Factor
- Key Point: Blood Transfusion and Blood Groups
- Heart Related Conditions
- Keeping the Heart Healthy
7 Human Body: Nervous System
- Control and Co-ordination
- Control and Co-ordination in Human Being
- Human Nervous System
- Introduction
- Components of Nervous System
- Need of Nervous System
- Key Points: Human Nervous System
- Neuron (Or Nerve Cell)
- Definition: Neuron (Nerve Cell)
- Definition: Neurolemma (Neurilemma)
- Definition: Nodes of Ranvier
- Definition: Synaptic Cleft
- Definition: Stimulus
- Definition: Response
- Definition: Nerve Impulse
- Definition: Receptors
- Definition: Effectors
- Key Points: Neuron
- Nerve Fibres
- Nerve Fibres
- Properties of nerve fibres
- Types of Nerve Fibres
- Myelinated nerve fibre
- Non-myelinated nerve fibre
- Major Division of the Nervous System
- Central Nervous System (CNS)
- Central Nervous System
- Different regions of Brain and its functions
- The Human Brain
- Definition: Meninges
- Definition: Meningitis
- Key Points: Human Brain
- The Spinal Cord
- Key Points: Spinal Cord
- Peripheral Nervous System > Somatic Nervous System
- Reflex Action
- Definition: Reflex Action
- Key Points: Reflex Action
- Types of Reflexes
- Definition: Natural (Inborn) Reflex
- Definition: Conditioned (Acquired) Reflex
- Definition: Conditioned Reflex (alternate)
- Reflex Arc
- Definition: Reflex Arc
- Key Points: Reflex Arc
8 Health and Hygiene
- Health
- Introduction
- Physical Health
- Mental Health
- Hygiene
- Introduction
- The Importance of Hygiene for Health and Well-being
- Disease
- Introduction
- Identification of disease
- Categories of Disease
- Categories of Disease
- Extent of occurrence
- Endemic diseases
- Epidemic diseases
- Pandemic diseases
- Sporadic diseases - Communicability: Communicable or Infectious diseases & Non- Communicable or Non-Infectious diseases
- Kinds of pathogens
- Kinds of transmitting agents
- Congenital diseases and acquired diseases
- Other types of diseases
- Infectious diseases
- Hereditary diseases
- Physiological diseases
- Deficiency diseases
- Spread of Communicable Diseases
- Common Diseases in Human Beings
- Viral Diseases
- Vector Borne Diseases
- Principles of Prevention of Diseases
- Vaccination and Immunization
- Vaccination
- Immunization
- First Aid and Emergency Action
- Definition: First Aid
- Basic Principles of First Aid
- Simple Steps for Providing First Aid in Different Situations
- Key Points: First Aid and Emergency Action
- Tobacco Abuse
- Tobacco Consumption
- Ill Effects of Tobacco Addiction
- The Importance of Avoiding Tobacco
- Alcohol Abuse
- Alcohol Consumption
- Effect of Alcohol Addiction
- Prevention and Control of Alcohol
9 Food Production
- Bacteria
- Useful Role of Bacteria in Industry
- Useful Role of Bacteria in Food Industry
- Useful Role of Bacteria in Medicine
- Useful Role of Bacteria in Agriculture
- Fungi
- Economic Importance of Fungi
- Economic importance of fungi
- Beneficial activities
(a) Food
(b) Medicine
(c) Industries
(d) Production of Organic acid
(e) Bakery and Brewery
(f) Production of enzymes
(g) Agriculture - Harmful activities
- Economic Importance of Fungi
- Crop and Its Types
- Horticulture
- Types of Farming in India > Organic Farming
- Key Points: Organic farming
- White Revolution
- Key Points: White Revolution
- Meat Providing Livestock
- Poultry Farm Management
- Poultry Farm Management
- Components of Poultry Farm Management
- Egg and Broiler Production
- Poultry Disease
- Aquaculture
- Fish culture
- Prawn Culture
- Pearl Culture
- Animal Husbandry (Livestock) > Pisciculture (Fish Farming)
- Sericulture
- Introduction
- The Life Cycle of Silk Worm
- Animal Husbandry (Livestock) > Apiculture (Bee Farming)
