CBSE Class 10 Science Previous Year Question Papers (2022–2026)
Download every CBSE Class 10 Science board paper from 2022–2026 as a free PDF, with the official CBSE marking scheme. Or practise all 555 questions online, one by one, with answers (495 have marking-scheme solutions).
Class 10 Science board papers with marking schemes
Two sets per year from different CBSE regions. Question papers are published by CBSE; click a PDF to download it free.
| Paper | Questions | Free download | Answers | Online |
|---|---|---|---|---|
| Board exam 2026 · Set 31/1/1 | 38 | Question paper PDF | Marking scheme PDF | Practise online |
| Board exam 2026 · Set 31/2/1 | 39 | Question paper PDF | Marking scheme PDF | Practise online |
| Board exam 2025 · Set 31/1/1 | 39 | Question paper PDF | Marking scheme PDF | Practise online |
| Board exam 2025 · Set 31/2/1 | 39 | Question paper PDF | Marking scheme PDF | Practise online |
| Board exam 2024 · Set 31/1/1 | 39 | Question paper PDF | Marking scheme PDF | Practise online |
| Board exam 2024 · Set 31/2/1 | 37 | Question paper PDF | Marking scheme PDF | Practise online |
| Board exam 2023 · Set 31/1/1 | 39 | Question paper PDF | Marking scheme PDF | Practise online |
| Board exam 2023 · Set 31/2/1 | 39 | Question paper PDF | Marking scheme PDF | Practise online |
| Board exam 2022 · Set 31/1/1 · Term 2 | 15 | Question paper PDF | Marking scheme PDF | Practise online |
| Board exam 2022 · Set 31/2/1 · Term 2 | 15 | Question paper PDF | Marking scheme PDF | Practise online |
Class 10 Science sample paper 2026-27
CBSE released the 2026-27 Sample Question Paper on 21 September 2026 and confirmed there is no change in the question paper design for 2026-27. Practise it first: it shows exactly how your board paper will look.
| Paper | Questions | Free download | Answers | Online |
|---|---|---|---|---|
| Sample paper 2026-27 | 39 | Question paper PDF | Marking scheme PDF | Practise online |
Chapter-wise weightage (from 8 board papers)
Average marks each chapter carried per board paper. Start revision with the chapters at the top.
| Chapter | Share | Avg. marks per paper |
|---|---|---|
| Light – Reflection & Refraction | 11.2 | |
| Electricity | 9.0 | |
| Carbon & its Compounds | 7.2 | |
| Acids, Bases & Salts | 6.5 | |
| Life Processes | 6.1 | |
| How do Organisms Reproduce | 6.0 | |
| Metals & Non-metals | 5.0 | |
| Chemical Reactions & Equations | 4.4 | |
| Heredity | 4.4 | |
| Magnetic Effects of Current | 4.4 | |
| Human Eye & Colourful World | 4.1 | |
| Our Environment | 3.8 | |
| Control & Coordination | 3.2 |
Most repeated Science questions in CBSE board exams
These questions (or near-identical ones) appeared in more than one board exam year.
- Two statements are given - one labelled Assertion (A) and the other labelled Reason (R). Assertion: Sodium carbonate is commonly used as an ingredient in antacid tablets. Reason: Sodium carbonate is a basic salt. Which o…
Asked in 2023, 2024, 2025, 2026Acids, Bases & Salts1 mark - (a) Complete the following ray diagram to show the formation of image : Ray 1 Ray 2 Object (b) Mention the nature, position and size of the image formed in this case. (c) State the sign of the image distance in this case…
Asked in 2023, 2024, 2025, 2026Light – Reflection & Refraction3 marks - An object is placed in front of a convex mirror at infinity. According to the New Cartesian Sign Convention, the sign of the focal length and the sign of the image distance in this case are respectively : (a) + , (b) , +…
Asked in 2023, 2024, 2025, 2026Light – Reflection & Refraction1 mark - Which circuit shows the correct and safe positions for the fuse and the switch? A. B. C. D.
Asked in 2023, 2024, 2025, 2026Electricity1 mark - Identify from the following a group containing all non-biodegradable substances. (A) Leather, Glass, Plastic (B) Cotton, Wood, Nylon (C) DDT, Polyester, Glass (D) Leather, Silk, Wool.
Asked in 2023, 2024, 2025, 2026Carbon & its Compounds1 mark - Name and state the rule to determine the direction of a : (i) magnetic field produced around a current carrying straight conductor. (ii) force experienced by a current carrying straight conductor placed in a magnetic fie…
Asked in 2022, 2024, 2025, 2026Magnetic Effects of Current3 marks - In which of the following organisms, multiple fission is a means of asexual reproduction ? (a) Yeast (b) Leishmania (c) Paramoecium (d) Plasmodium.
Asked in 2023, 2024, 2025, 2026How do Organisms Reproduce1 mark - A thin beam of white light falls on a face of a glass prism and a spectrum is obtained on a screen. Which of the following options is the correct sequence of colours from top to bottom on the screen ? 1 (A) Red, Green, Y…
Asked in 2023, 2024, 2025, 2026Human Eye & Colourful World3 marks
Class 10 Science paper pattern
Based on the sample paper 2026-27 (80 marks).
| Section | Questions | Marks |
|---|---|---|
| Section A | 20 × 1 mark | 20 |
| Section B | 6 × 2 marks | 12 |
| Section C | 7 × 3 marks | 21 |
| Section D | 3 × 5 marks | 15 |
| Section E | 3 × 4 marks | 12 |
CBSE additional practice papers for Class 10 Science
| Paper | Questions | Free download | Answers | Online |
|---|---|---|---|---|
| Additional practice paper 2023-24 | 39 | Question paper PDF | Marking scheme PDF | Practise online |
| Additional practice paper 2023-24 · Set 2 | 39 | Question paper PDF | Marking scheme PDF | Practise online |
| Additional practice paper 2022-23 | 39 | Question paper PDF | Marking scheme PDF | Practise online |
| Additional practice paper 2021-22 | 60 | Question paper PDF | Not published | Practise online |
Frequently asked questions
Where can I download CBSE Class 10 Science previous year question papers for free?
All CBSE Class 10 Science board papers from 2022–2026 are listed on this page as free PDF downloads, together with the official marking schemes. You can also practise every question online in the free BoardPrep app.
Are marking schemes included with the Class 10 Science papers?
Yes. The official CBSE marking scheme is linked next to each paper where CBSE has published it. In the app, 495 of the 555 questions show their marking-scheme answer.
Which chapters carry the most marks in Class 10 Science?
In recent board papers the highest-weightage chapters were Light – Reflection & Refraction, Electricity, Carbon & its Compounds. See the chapter-wise weightage table above for the full list.
Has the CBSE exam pattern changed for 2026-27?
No. CBSE's notification of 21 September 2026 says there is no change in the question paper design or assessment pattern for 2026-27, and the passing criteria stay the same as 2025-26.
Is BoardPrep free?
Yes. All papers, the question bank, the paper generator, mock tests and the Pattern Challenge are free to use.
Practise Class 10 Science free
Question-wise practice with answers, chapter tests, board-pattern paper generator with PDF download, and a daily streak to keep you going.