CBSE Sample Papers for Class 10 Science 2026-27 with Answers and Solutions

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• Sample Papers for October
• Sample Papers for November
• Sample Papers for December
• Sample Papers for January
• Sample Papers for February

Begin with Sample Paper Set 1 to 4, which test the full syllabus from Chemical Reactions and Equations to Our Environment. Solutions for all four papers are available now. Solve each paper in 3 hours, then check your answers, balanced equations, ray diagrams and units against our step-by-step solutions. If your half-yearly exam has just finished, this set will show you what to fix first.

Papers 5 to 8 bring more application-based questions of the kind CBSE now prefers, such as reading a pH scale, completing a ray diagram or working out an electricity bill. The solution of Paper 5 is available now. The answer key for Papers 6, 7 and 8 will be released in November 2026. Attempt every question before you look at any answer.

Half of the 2026-27 Science paper tests application, analysis and evaluation rather than simple recall. Papers 9 to 12 build exactly that skill through case-based, data-based and experiment-based questions drawn from all three sections. Practise reading each situation carefully before you choose a concept to apply. Step-by-step solutions for this set will be released in December 2026.

With pre-board exams coming up in most schools, use Papers 13 to 16 as full rehearsals. Solve each one in a single 3-hour sitting, under exam conditions and note how long each section takes you. Answers and solutions for this set will be released in January 2027, so you can score yourself honestly and close the gaps before the board exam.

The final set is for last-round revision before the Phase 1 board exam, expected to begin in mid-February 2027. Use Papers 17 to 20 to polish your speed, labelled diagrams and complete working. Solutions for this set will be released in February 2027. These papers will also help if you plan to take the optional second board exam in May 2027 to improve your score.

1. Finish each chapter using NCERT Solutions, including its in-text questions and activities, before you attempt a full sample paper.
2. Solve every paper in one 3-hour sitting. Finish the 20 one-mark questions in about 25 minutes, then give most of your time to the 3-, 4- and 5-mark answers.
3. In assertion-reason questions, check whether the Assertion and the Reason are each true, then decide whether the Reason correctly explains the Assertion.
4. In Chemistry, write balanced chemical equations and name the reducing agent, product or type of reaction whenever the question asks for it.
5. In Physics, draw ray diagrams with a ruler and arrows, follow the sign convention for lenses and give every numerical answer with its SI unit.
6. In Biology, draw neat, labelled diagrams, such as the nephron, heart or pistil and set out genetic crosses with gametes, genotypes and the final ratio.
7. In 4-mark case-based and experiment-based questions, study the figure or data first and choose the internal choice option you can answer completely.
8. When solutions are released, mark your paper step by step, keep a chapter-wise error notebook and re-solve every wrong question a week later.

• Subject code: Science (086); theory paper of 80 marks in 3 hours
• Internal assessment: 20 marks (Periodic Assessment 10, Subject Enrichment/Practical Work 5, Portfolio 5)
• Paper format: 39 compulsory questions in three sections
• Section A, Biology: Questions 1–16, 30 marks
• Section B, Chemistry: Questions 17–29, 25 marks
• Section C, Physics: Questions 30–39, 25 marks
• Question mix: 20 one-mark questions (MCQs and assertion-reason), 6 two-mark, 7 three-mark, 3 four-mark case or experiment-based and 3 five-mark questions
• Internal choice: in three questions in each section
• Chemical Substances – Nature and Behaviour: 25 marks (Chemical Reactions and Equations; Acids, Bases and Salts; Metals and Non-metals; Carbon and its Compounds)
• World of Living: 25 marks (Life Processes; Control and Coordination; How do Organisms Reproduce?; Heredity)
• Natural Phenomena: 12 marks (Light – Reflection and Refraction; The Human Eye and the Colourful World)
• Effects of Current: 13 marks (Electricity; Magnetic Effects of Electric Current)
• Natural Resources: 5 marks (Our Environment)
• Competency weightage: 50% knowledge and understanding, 30% application, 20% analysing, evaluating and creating
• Official reference: CBSE released the Class 10 Science Sample Question Paper and Marking Scheme 2026-27 on 21 September 2026, with no change in the question paper design
• Two board exams: Phase 1 is compulsory and expected from mid-February 2027. Phase 2, expected in May 2027, is optional and lets you improve marks in up to three subjects, including Science.

Sample papers tell you where you stand, but your board marks are built on the NCERT textbook. Class 10 Science board questions grow out of NCERT concepts, activities and diagrams, so every mistake you find in a sample paper should send you straight back to that chapter. Revise it with our NCERT Solutions for Class 10 Science, which explain the exercises of all 13 chapters step by step, from chemical equations to electricity. Solve one sample paper a week, check it as soon as its solutions go live and keep shortening your error list. With 20 solved papers and steady NCERT revision, you will face the 2027 board exam well prepared and confident.