CISCE ICSE Class 6 Biology Syllabus - Free PDF Download
CISCE Syllabus 2025-26 ICSE Class 6: The CISCE ICSE Class 6 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 6 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 6 Biology Syllabus for 2025-26 is below.
Academic year:
CISCE ICSE Class 6 Biology Revised Syllabus
CISCE ICSE Class 6 Biology Course Structure 2025-26 With Marking Scheme
| # | Unit/Topic | Weightage |
|---|---|---|
| 1 | Plant Life | |
| 1.1 | The Leaf | |
| 1.2 | The Flower | |
| 2 | The Cell | |
| 3 | Human Body | |
| 3.1 | Digestive System | |
| 3.2 | Respiratory System | |
| 3.3 | Circulatory System | |
| 4 | Health and Hygiene | |
| 5 | Habitat and Adaptation | |
| Total | - |
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Syllabus
1: Plant Life
CISCE ICSE Class 6 Biology Syllabus
1.1 The Leaf
- Root
- Introduction
- Experiment
- Types of Root
- Types of Root
- Experiment 1
- Experiment 2
- Experiment 3
- Shoot System
- Stem
- The Structure of a Plant
- Types of Leaf
- Mode of Nutrition in Plant
- Significance of Photosynthesis
- Concept of Transpiration
- Definition: Transpiration
- Significance of Transpiration
- Modifications of Plant Parts
- Modifications of Leaf
1.2 The Flower
- Structure of a Bisexual Flower
- Types of Flowers
- Sexual Reproduction in Plants
- Definition: Bisexual Flower
- Definition: Unisexual Flower
- Definition: Pedicellate Flower
- Definition: Sessile Flower
- Key Points: Sexual Reproduction in Plants
- Self-pollination
- Definition: Self-pollination
- Fruit
- Classification of Seeds
- Germination in Some Common Seeds
2: The Cell
CISCE ICSE Class 6 Biology Syllabus
- The Invention of the Microscope and the Discovery of Cell
- Cell Theory
- Plant Cell Vs Animal Cell
- Non-living Substances Or Cell Inclusion
- Cell Inclusion
- Granule
- Vacuole
- Functions of Vacuole
- Key Points: Vacuoles & Granules
- Cell Division: an Essential Life Process
- Key Points: Cell Division
- Protoplasm
3: Human Body
CISCE ICSE Class 6 Biology Syllabus
3.1 Digestive System
- Food and Its Types
- Nutrients and Nutrition
- Introduction
- Modes of Nutrition
- Types of Nutrients
- Component of Food
- Human Digestive System
- Digestion
- Alimentary Canal
- Digestive organs
- The Mouth and Buccal Cavity
- The Teeth and Its Structure
- Teeth and Its Types
- Structure of a Tooth
- Tongue
- The Salivary Glands
- The Food Pipe/Oesophagus
- Introduction
- Function of the Oesophagus
- The Stomach
- Introduction
- Function of the Stomach
- The Small Intestine
- Introduction
- Functions of Small Intestine
- Liver
- Introduction
- Functions of the Liver
- Human Endocrine Glands
- Pancreas (Islets of Langerhans)
- Definition: Islets of Langerhans
- Introduction
- Function of Pancreas
- Key Points: Pancreas
- Pancreas (Islets of Langerhans)
- Absorption of Food
- The Large Intestine
- Introduction
- Functions of the Large Intestine
- Assimilation of Food
- The Aching Tooth
- Oral Health
3.2 Respiratory System
- Cellular Respiration
- Definition: Aerobic Respiration
- Definition: Anaerobic Respiration
- Key Points: Cellular Respiration
- Human Respiratory System
- Respiratory System
- Exchange of Gases in Lungs
- Significance of Respiration
- Key Points: Respiratory System
- Parts of Respiration
- Breathing
- Gaseous transport
- Tissue respiration
- Cellular respiration
- Mechanism of respiration-Breathing
- Mechanism of Respiration
- Steps of Respiration
- Disorders of Respiratory System
3.3 Circulatory System
- Blood Circulatory System
- Blood
- Composition of Blood > Plasma (The Liquid Portion of Blood)
- Plasma
- Components of Plasma
- Function of Plasma
- Definition: Serum
- Composition of Blood > Cellular Elements: Red Blood Cells (Erythrocytes)
- Red Blood Cells
- Function of RBC
- Key Points: Red Blood Cells
- Composition of Blood > Cellular Elements: White Blood Cells (Leukocytes)
- White Blood Cells (WBCs)
- Types of WBCs
- Function of WBCs
- Key Points: White Blood Cells
- Composition of Blood > Cellular Elements: Blood Platelets (Thrombocytes)
- Definition: Thrombokinase
- Definition: Clot
- Blood Platelets
- Function of Blood Platelets
- Key Points: Blood Platelets
- Functions of Blood
- 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
- Types of Closed Circulation
- Heart Beat
- Definition: Cardiac Cycle
- Heart Beat Rate
- Heart Beat Sounds
- Key Points: Heart Beat
- Blood Pressure (B.P.)
- Introduction
- Definition: Blood Pressure
- Definition: Systolic Pressure
- Definition: Diastolic Pressure
- Definition: Hypertension
- Definition: Sphygmomanometer
- 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
- Keeping the Heart Healthy
4: Health and Hygiene
CISCE ICSE Class 6 Biology Syllabus
- 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
- Modes of Transmission of Diseases
- Spread of disease through air
- Spread of disease through water
- Spread of disease through food
- Spread of disease by insects
- Spread of disease by direct contact
- Common Diseases in Human Beings
- Viral Diseases
- Bacterial Diseases
- Protozoan Diseases
- Helminthic Diseases
- Principles of Prevention of Diseases
5: Habitat and Adaptation
CISCE ICSE Class 6 Biology Syllabus
- Habitat
- Adaptations and Its Types
- Adaptations of Plants
- Adaptation in Desert Plants (Xerophytes)
- Introduction
- Experiment
- Adaptations in Seeds for Transport Through Air
- Adaptation in Desert Plants (Xerophytes)
- Adaptation in Animals
- Adaptation in Mountain Animal
