Science

The Science section in TNPSC exams focuses on testing the candidate’s understanding of basic scientific principles, practical knowledge, and the application of scientific concepts in daily life. Questions are generally factual and concept-based, taken from Physics, Chemistry, Biology, and Environmental Science, aligned with the Tamil Nadu State Board syllabus.

This module covers every concept with clear explanations, real-world examples, diagrams, and quizzes, making science simple and exam-ready.

🔹 Physics

Build a foundational understanding of the physical world and its laws.

Topics include:

Motion, Force, and Laws of Motion

Work, Energy, and Power

Light: Reflection, Refraction, Lenses, and Mirrors

Sound: Wave nature, Frequency, Echo

Electricity and Magnetism

Heat and Thermodynamics

Units and Measurements

Simple Machines

🔹 Chemistry

Learn the properties, behavior, and composition of matter.

Topics include:

Matter: Elements, Compounds, and Mixtures

Atomic structure, Molecules, and Chemical formulas

Periodic Table and properties of elements

Acids, Bases, and Salts

Chemical reactions and equations

Metals and Non-metals

Carbon and its compounds

Uses of Chemicals in daily life (fertilizers, medicines, soaps, etc.)

🔹 Biology

Understand the structure and functioning of living organisms.

Topics include:

Cell structure and functions

Human body systems: Digestive, Circulatory, Nervous, Respiratory

Plant physiology: Photosynthesis, Reproduction

Diseases and prevention

Nutrition and balanced diet

Genetics and heredity (basic level)

Microorganisms and their role

Blood groups and vaccination

🔹 Environmental Science

Focus on current environmental issues and sustainability.

Topics include:

Ecosystems and biodiversity

Pollution: Air, Water, Noise, Soil

Renewable and non-renewable resources

Global Warming and Climate Change

Conservation of forests and wildlife

Waste management and sustainable practices

Environmental laws and initiatives

🔹 Science in Everyday Life

This section links science to real-world applications to promote practical understanding.

Topics include:

Inventions and Inventors

Common scientific devices: Thermometer, Barometer, Microscope

Food adulteration and safety

Agriculture and scientific advancements

Health, hygiene, and first aid

Vaccines, antibiotics, and medicines

📘 Ideal For:

TNPSC Group I, II, IIA, IV, and VAO aspirants

Students who need a concise and practical revision of core science concepts

Learners preparing for other general knowledge-based exams