CBSE Class 10 · India · Predicted papers

CBSE Class 10 Science086

1 paper80 marks3 h

What we predict comes up

From the syllabus weighting and how the papers are usually set. The papers below follow it.

Chemical Substances: Nature and Behaviour31%Unit I is 25 of the 80 theory marks in CBSE's 2026-27 curriculum and makes up all of Section B (Chemistry): reactions, acids, bases and salts, metals and non-metals, and carbon compounds.
World of Living31%Unit II is 25 of 80 marks in the 2026-27 curriculum: life processes, control and coordination, reproduction and heredity, set in Section A (Biology); evolution is assessed only in school.
Effects of Current16%Unit IV (electricity and the magnetic effects of current) is 13 of 80 marks; motor, induction and generator are now assessed only in school.
Natural Phenomena15%Unit III (light: mirrors, lenses, the eye, prism and scattering) is 12 of 80 marks, with a 5-mark long answer usually drawn from it in Section C.

Theory paper

3 h · 80 marks · No calculator

180:00

This question paper consists of 39 questions in 3 sections. Section A is Biology (questions 1 to 16), Section B is Chemistry (questions 17 to 29) and Section C is Physics (questions 30 to 39).
All questions are compulsory. In the board paper an internal choice is provided in some questions; this practice paper prints one version of each.
Each section begins with multiple-choice and assertion-reason questions of 1 mark each, followed by short answer questions of 2 and 3 marks, a source-based or case-based question of 4 marks and a long answer question of 5 marks.
Answer the questions of each section in that section of the answer book. Write units and show your working in numerical questions. Use of a calculator is not permitted.

Answer or mark a question and your score adds up here.

39 questions

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Not included: The 20 marks of internal assessment (periodic tests, practical work and the portfolio) are school-based and not set here, and where the real paper offers an internal choice in about a third of its questions this sitting prints one version.

CBSE Class 10 Science study checklist

Revise in this order: the topics worth the most marks first. Tick a topic off when you can answer its questions in the paper above without notes.

Chemical Substances: Nature and Behaviour · about 31% of the marksUnit I is 25 of the 80 theory marks in CBSE's 2026-27 curriculum and makes up all of Section B (Chemistry): reactions, acids, bases and salts, metals and non-metals, and carbon compounds.
World of Living · about 31% of the marksUnit II is 25 of 80 marks in the 2026-27 curriculum: life processes, control and coordination, reproduction and heredity, set in Section A (Biology); evolution is assessed only in school.
Effects of Current · about 16% of the marksUnit IV (electricity and the magnetic effects of current) is 13 of 80 marks; motor, induction and generator are now assessed only in school.
Natural Phenomena · about 15% of the marksUnit III (light: mirrors, lenses, the eye, prism and scattering) is 12 of 80 marks, with a 5-mark long answer usually drawn from it in Section C.
Natural Resources · about 6% of the marksUnit V (our environment: ecosystems, ozone, waste) is 5 of 80 marks, set in Section A as objective items and a short answer.

Questions

What topics come up most in CBSE Class 10 Science?

Our prediction: Chemical Substances: Nature and Behaviour (about 31% of the marks), World of Living (about 31% of the marks), Effects of Current (about 16% of the marks). The full list with the reason for each is at the top of this page.

When is the CBSE Class 10 Science exam?

CBSE Class 10 is sat February to March, with an optional second exam in May to improve up to three subjects. Central Board of Secondary Education publishes the exact timetable for each sitting; check it for your paper's date.

How many papers are there, and how long are they?

One paper: Theory paper (3 hours, 80 marks). That is 3 hours and 80 marks in all.

Can I use a calculator?

In this format a calculator is not allowed. Check your board's current rules before the exam.

Are these the real CBSE Class 10 Science papers?

No. They are predicted papers written by us in the real format, with original questions, not copies of past papers. Use them alongside the official past papers and specimen papers from Central Board of Secondary Education.

Is it free?

Yes. The outline, the predictions and the first questions are open to everyone; every paper, the answers and the mark scheme are free with a Knomi account.

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