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.

Worth knowing

Only five questions in Group 4, do not over-invest, a weekend plus revision cards is the right budget
The syllabus word is 'everyday application', questions favour phenomena and uses over formulas
One evening on the year's science news (ISRO launches, notable inventions) covers the current-science questions

Step by step

01Physics 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.

02Chemistry as household facts

Acids and bases in daily life, fertilizers, food adulterants, common compounds' uses, the syllabus lists exactly these.

03Biology as health literacy

Nutrition deficiencies, common diseases and their agents, human systems' basic functions, the most frequently asked science material.

04One current-science sweep

Latest inventions is in the syllabus text: ISRO launches and notable science news from the last year, one evening's compilation.

Official links

Science in the Group 4 syllabus Solve previous-year papers

Frequently asked questions

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.

Do I need to memorise formulas?

Rarely. The framing is everyday application: why phenomena happen, what common compounds are used for, which deficiency causes which disease. Samacheer's application sections are the question bank.

Where do the current-science questions come from?

The syllabus lists 'latest inventions in science and technology'. ISRO missions and the year's notable science news are the reliable sources, and a single compilation covers them.

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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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