How much time does science deserve?

For Group 4's five questions, a weekend plus revision cards. Spend the saved hours on the Tamil paper or the 20-question units, that is where ranks move.

TNPSC General Science: Small Unit, Sure Marks

Science is only 5 questions in Group 4, sized for efficient preparation, not depth. The syllabus phrase is 'everyday application', and the questions honour it.

Step 1
Physics as phenomena
Why the sky, mirrors, sound and heat behave as they do, application framing over formulas. Samacheer's everyday-physics sections are the question bank.
Step 2
Chemistry as household facts
Acids and bases in daily life, fertilizers, food adulterants, common compounds' uses, the syllabus lists exactly these.
Step 3
Biology as health literacy
Nutrition deficiencies, common diseases and their agents, human systems' basic functions, the most frequently asked science material.
Step 4
One current-science sweep
Latest inventions is in the syllabus text: ISRO launches and notable science news from the last year, one evening's compilation.

Science topic notes

Frequently asked questions

A Group 4 preparation plan built from the official weightage: Tamil first (100 questions), then the two 20-question GS units, then everything else.

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How to Prepare for TNPSC Group 1: A Three-Stage Campaign

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How to Score 120+ in the TNPSC Tamil Eligibility Test

The Tamil Eligibility Test is half the Group 4 paper. Unit-by-unit tactics for ilakkanam, sollagarathi, the prescribed literature and the 40% trap.

Steps and specifications follow official TNPSC instructions and notification annexures. Sources: TNPSC official notifications. Figures are indicative and may change with each official notification. Data last reviewed: July 2026.

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