Science SSLC (English Medium) Class 6 Tamil Nadu Board of Secondary Education Syllabus 2025-26

• Measurement
• The need for measurement in daily life

• Length
• Units of length
• SI Unit of length
• Subunit of metre
• Multiple units of metre
• Measurements of large distance:
  (i) Parallax Method: Parallax or parallactic angle (θ)
• Method of measuring very small distances (Size of molecules)
• Range of Lengths

• Use of a metre ruler to measure length

1. Description of a metre ruler
2. Measurement of length of an object with a metre ruler
3. Parallax Error

• Use of measuring tape to measure length

1. Description of a measuring tape

• Rage of Mass

• Time
• SI unit of Time
• Smaller unit of Time
• Bigger unit of Time

• Introduction to Scientist
• Motion and Rest

• Introduction of Contact Force
• Types of Contact Force

• Introduction of Non-Contact Forces
• Types of Non-Contact Forces
• Experiment

• 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

1. Linear motion
2. Non-linear motion

• Experiment 1
• Experiment 2
• Experiment 3
• Experiment 4
• Substance (Matter)
• Physical Nature of matter
• Chemical properties

• Characteristics of particles or matter
• Classification of Matter and Particle
• Experiment

• Pure substance
• Characteristics of Pure substance
• Examples of Pure Substance

• Experiment 
• Elements

• Introduction
• Experiment 1
• Experiment 2

• Introduction
• Separation of Unwanted Substances from Mixtures
• Activity

• Introduction
• Experiment

• Types of Root
• Experiment 1
• Experiment 2
• Experiment 3

• Habitat
• Types of Habitats

1. Aquatic habitat: Fresh water Habitat and Marine water habitat
2. Terrestrial habitat: Forest habitat, Grassland habitat, and Desert habitat

• Habitat
• Types of Habitats

1. Aquatic habitat: Fresh water Habitat and Marine water habitat
2. Terrestrial habitat: Forest habitat, Grassland habitat, and Desert habitat

• Introduction
• Physical Health
• Mental Health

• Introduction
• The Importance of Hygiene for Health and Well-being

1. Macro-minerals
2. Trace minerals (micro-minerals)

• Introduction of Microorganisms
• Types of Microorganisms
• Classification of Microorganisms
• Experiment
• Nature of microorganisms
• Growth of microorganisms

• Introduction
• Architecture of Computer

• Need of Software 

• Sources of Heat
• Methods of Heat Energy Transfer
• Various Forms of Energy

• Introduction
• Experiment: 1
• Experiment: 2

• Introduction
• Experiment

• Introduction
• Hydroelectricity and its Production
• Application of Hydroelectric Energy

• Nuclear Energy
• Production of electricity from Nuclear energy
• Atomic power stations in India

• Introduction of Electric Cell
• Types of Electric Cells
• Experiment

• Introduction
• Working
• Electric Circuits and Circuit Diagrams
• Experiment
• Joule’s Law of Heating and Electrical Power

• Components of Electric Circuits
• Experiment 

• Conductors
• Insulators (Non-Conductors)

• Chemical and Physical Changes
• Experiment

• Introduction
• Effect of Change of Temperature
• Effect of Change of Pressure
• Heat Required to Change State

• Introduction
• Types of Chemical Reaction
• Experiment

• Atmosphere
• Layers of Atmosphere
• The Role of Atmosphere In Climate Control

• Introduction
•  Uses of Gases in Air

• The Fundamental Unit of Life: Cell
• Discovery of Cells

• Cell Numbers
• Cell Size
• Smallness of Cells: A Greater Efficiency
• Cell Shapes: To suit Functional Requirement

• Characteristics of Cells
• Types of Cells
• Difference between Prokaryotic and Eukaryotic cells

• Plant Cell
• Animal Cell
• Difference between Plant Cell and Animal Cell

• Introduction
• Parts of the human skeletal system

• Introduction
• Types of Muscles
• Activity

• Digestion
• Alimentary Canal 
• Digestive organs

• Respiratory System
• Exchange of Gases in Lungs
• Significance of Respiration

1. Breathing 
2. Gaseous transport
3. Tissue respiration
4. Cellular respiration

• Blood Circulatory System
• Blood vascular system
• Blood Composition
• Blood Coagulation (Clotting)

• Structure of the Heart
• Layers of the Heart Wall
• Chambers of the Heart
• Valves of the Heart
• Pathway of Blood through the Heart

• Blood Vessels: Structure and Functions
• Capillaries

• Blood Circulation through Heart / Functioning of Heart
• Experiment

• Introduction
• Components of Blood

• Heartbeat Rate
• Heart Sounds
• Pulse
• Pulse Rate

• Introduction
• Components of Nervous System
• Neuron
• Need of Nervous System

Forebrain: 

1. Olfactory lobes
2. Cerebrum
3. Diencephalon

• Spinal Cord 
• T. S. of spinal cord
• Functions of the spinal cord

Human Endocrine System

• Properties of Hormones 
• Mechanism of hormone action 

• Introduction
• Human Excretory System Organs
• Excretion in Humans
• Mechanism of Excretion in Humans
• Dialysis

• Introduction
• Architecture of Computer

• Classification of Magnets
  1) Natural Magnet
  2) Artificial Magnet

• Introduction
• Experiment

• Introduction
• Importance of Water for Sustaining Life

• Introduction
• Water Cycle

• Various uses of Water
• Scarcity of Water

• Introduction
• Types of Chemical Reaction
• Experiment

• Introduction
• Types of Soaps
• Synthetic Detergents
• Experiment

• Detergent and Its Working
• Experiment

• Introduction of Fertilizers
• Harmful Effects of Chemical Fertilizers
• Protection of crops
• Steps for Storing Grain
• Steps to Protect Grain from Damage

• Ecosystem
• Basic categories of ecosystem
  1) Terrestrial
  2) Aquatic

• Introduction
• Diversity in Animal Food
• Reproduction in Animals
• Classification of Animals Based on Habitat

• Introduction of Food Chain
• Advantages of Food Chain

• Introduction of Food Web
• Advantages of Food Web

• Introduction
• Trophic Levels of The Ecosystem

• Trophic Level
• Pyramid of Energy

• Pollution
• Types of Pollution

• Water Pollution
• Types of Water Pollutants
• Causes of Water Pollution
• Reasons of Water Pollution

• Introduction
• Architecture of Computer

• Need of Software