Download the CBSE Class 10 Science Sample Paper 2027 PDF with its marking scheme (solutions) – the official CBSE sample question paper (SQP) for the 2026-27 session, the paper to practise for the CBSE Class 10 board exam 2027. It is an 80-mark, 3-hour paper with 39 questions in 3 sections. The pattern is the same as the 2026 sample paper. The 2026 and 2025 sample papers are also here. Students also call it the CBSE 10th Science model question paper 2027 or model test paper – it is the same official CBSE paper.
CBSE Class 10 Science Sample Paper 2027 PDF Download
Open a paper to read it online or download the PDF. The marking scheme has the answers, with the marks for each step.
| Year | Document | Download |
|---|---|---|
| 2027 | CBSE Class 10 Sample Paper 2027 for Science | View PDF |
| 2027 | CBSE Class 10 Sample Paper 2027 Solution (Marking Scheme) for Science | View PDF |
| 2026 | CBSE Class 10 Sample Paper 2026 for Science | View PDF |
| 2026 | CBSE Class 10 Sample Paper 2026 Solution for Science | View PDF |
| 2025 | CBSE Class 10 Sample Paper 2025 for Science | View PDF |
CBSE 10th Science Model Question Paper 2027 – Quick Facts
| Board | Central Board of Secondary Education (CBSE) |
| Class | Class 10 |
| Subject | Science (code 086) |
| Session | 2026-27 – for the board exam 2027 |
| Marks and time | 80 marks, 3 hours |
| Questions | 39 questions in 3 sections |
| Solutions | Yes – official CBSE marking scheme |
| Older papers | 2026, 2025 |
| Released by | CBSE (cbseacademic.nic.in) |
CBSE Class 10 Science Sample Paper 2027 – Read Online
CBSE Class 10 Science Paper Pattern 2027
How the 2027 sample paper is set (from the paper itself) – 80 marks, 3 hours, 39 questions:
| Section | Questions | Type | Marks each | Total |
|---|---|---|---|---|
| A | 1–16 | MCQ (Q1–7), assertion-reason (Q8–9), short answer (Q10–12), short answer (Q13–14), case/source-based (Q15), long answer (Q16) | 1 (Q1–9), 2 (Q10–12), 3 (Q13–14), 4 (Q15), 5 (Q16) | 30 |
| B | 17–29 | MCQ (Q17–23), assertion-reason (Q24), short answer (Q25), short answer (Q26–27), case/source-based (Q28), long answer (Q29) | 1 (Q17–24), 2 (Q25), 3 (Q26–27), 4 (Q28), 5 (Q29) | 25 |
| C | 30–39 | MCQ (Q30–31), assertion-reason (Q32), short answer (Q33–34), short answer (Q35–37), case/source-based (Q38), long answer (Q39) | 1 (Q30–32), 2 (Q33–34), 3 (Q35–37), 4 (Q38), 5 (Q39) | 25 |
| Total | 39 | 80 |
Choice: All questions are compulsory, with an internal choice in 9 questions: either-or options in Q11, Q16, Q26, Q29, Q34 and Q39, and a choice of sub-part C or D in the 4-mark questions Q15, Q28 and Q38.
- Section A is Biology, Section B is Chemistry and Section C is Physics (printed in General Instruction (i)).
- Separate alternative questions are printed ‘For visually impaired students’ in place of diagram-based questions (e.g. Q2, Q16, Q21, Q22, Q26, Q28, Q35, Q37, Q38, Q39).
Unit-wise Marks in the Science Sample Paper 2027
Marks for each unit (counted question by question from the 2027 paper):
| Unit | Questions | Marks |
|---|---|---|
| World of Living (Life Processes; Control and Coordination; How do Organisms Reproduce; Heredity) | Q1, Q2, Q3, Q4, Q5, Q6, Q8, Q10, Q11, Q12, Q13, Q15, Q16 | 25 |
| Natural Resources (Our Environment) | Q7, Q9, Q14 | 5 |
| Chemical Substances – Nature and Behaviour | Q17, Q18, Q19, Q20, Q21, Q22, Q23, Q24, Q25, Q26, Q27, Q28, Q29 | 25 |
| Natural Phenomena (Light – Reflection and Refraction; The Human Eye and the Colourful World) | Q30, Q32, Q33, Q35, Q39 | 12 |
| Effects of Current (Electricity; Magnetic Effects of Electric Current) | Q31, Q34, Q36, Q37, Q38 | 13 |
What Is New in the Science Sample Paper 2027?
Compared with the 2026 sample paper (session 2025-26):
- No change in pattern – same sections, marks and number of questions as the 2026 sample paper (39 questions, 80 marks, 3 hours; Biology 30 / Chemistry 25 / Physics 25; same marks for every question number; 4 assertion-reason questions at Q8, Q9, Q24, Q32; 4-mark case-based questions at Q15, Q28, Q38; 5-mark questions at Q16, Q29, Q39; internal choice in the same 9 questions).
- The 2027 paper itself states: ‘There is no change in the Question Paper Design and Assessment Pattern for Academic Session 2026-27’ (2026 paper’s footnote said the 2024-25 assessment scheme continues).
- Minor: in Q15 the internal choice moved from sub-part A/B (2026) to sub-part C/D (2027); Q28’s choice is now between sub-parts C and D (in 2026 it was within sub-part B).
- Instruction (ii) wording changed slightly: ‘attempt only one of the alternatives in these questions’ (2027) vs ‘attempt only one of these questions’ (2026).
Questions from the Science Sample Paper 2027
Two questions from the 2027 paper, to show the level:
- Section A (Biology), 1 mark: The male gamete of an apple plant has seventeen chromosomes. What is the number of chromosomes in the female gamete and in the cells of the adult plant respectively? (A) 17,17 (B) 17,34 (C) 34,34 (D) 34,51
- Section C (Physics), 4 marks: A school’s automatic electromagnetic door lock uses a solenoid controlled by a switch; when current flows, the magnetic field pulls an iron bolt to unlock the door, and a spring pushes it back when the switch is off. (A) Why is an iron core kept inside the solenoid? (B) How can we determine the magnetic poles in this solenoid? Attempt C or D: (C) If the current is increased from 1 A to 2 A, how does the magnetic effect change and affect unlocking? OR (D) If the current source is fixed, how can we increase the magnetic field in the solenoid?
CBSE Class 10 Science Marking Scheme 2027 (Solutions)
The 2027 marking scheme gives the correct option for every MCQ/assertion-reason question (often with a one-line explanation in Chemistry), model answers for all descriptive questions with step/value-point marks shown in brackets (e.g. 0.5+0.5, (1), (2)), worked numericals with sign convention, and separate answers for both internal-choice options and for the visually-impaired alternatives. Diagram answers (Q26 A(i) electron dot structure, Q39 ray diagrams) are images in the PDF. Check your answers against it after you solve the paper.
Science Marking Scheme 2027 – Read Online
How to Score Well – Tips from the 2027 Paper
- The paper is split by discipline – Biology (Section A) carries 30 marks, Chemistry and Physics 25 each – so budget roughly 3/8 of your time for Section A.
- Each section ends with a 4-mark case-based question (Q15 Mendel’s crosses, Q28 heat conduction in metals, Q38 solenoid door lock) with a choice between sub-parts C and D – practise reading a short passage/graph and answering in parts.
- Expect 4 assertion-reason questions (Q8, Q9, Q24, Q32); in this paper two of them have the answer ‘A is false but R is true’, so check the assertion carefully on its own.
- Physics short answers reward exact statements and step marks – Snell’s law, Joule’s law, resistivity and the right-hand thumb rule each carry 1 mark per definition, and numericals (Q35 lens, Q37 circuit) are marked step by step with sign convention.
- Chemistry Q29 asks you to correct and balance equations (e.g. MgCl2 + AgNO3, Al + H2SO4) and judge reaction types – practise balancing and identifying redox/decomposition/displacement reactions.
- Solve the 2027 paper in one sitting with a timer, check it with the marking scheme, then solve the 2026 paper a few days later.
More Class 10 Science Papers and Study Material
Practise past board papers, or plan your revision with the syllabus and important questions for Class 10 Science:
CBSE Class 10 Science Sample Paper 2027 – FAQs
Is the CBSE Class 10 Science Sample Paper 2027 out?
Yes. CBSE has released the Class 10 Science sample paper 2027 for the 2026-27 session with its marking scheme – both are in the table on this page, free.
Is the CBSE Class 10 Science Sample Paper 2027 available with solutions?
Yes. The official CBSE marking scheme is the solution – it gives the answers and the marks for each step. Download it from the table above or read it online on this page.
Has the CBSE Class 10 Science paper pattern changed for 2027?
No. CBSE says there is no change in the question paper design for 2026-27. The 2027 sample paper keeps the 2026 pattern – 80 marks, 3 hours, 39 questions in 3 sections. Small changes: The 2027 paper itself states: ‘There is no change in the Question Paper Design and Assessment Pattern for Academic Session 2026-27’ (2026 paper’s footnote said the 2024-25 assessment scheme continues).; Minor: in Q15 the internal choice moved from sub-part A/B (2026) to sub-part C/D (2027); Q28’s choice is now between sub-parts C and D (in 2026 it was within sub-part B)..
How many marks and questions are in the CBSE Class 10 Science Sample Paper 2027?
It is a 80 marks, 3 hours, 39 questions paper – Section A: 1–16 (30 marks); Section B: 17–29 (25 marks); Section C: 30–39 (25 marks).
Which units carry the most marks in the Science sample paper 2027?
In the 2027 sample paper: World of Living (Life Processes; Control and Coordination; How do Organisms Reproduce; Heredity) (25 marks), Chemical Substances – Nature and Behaviour (25 marks), Effects of Current (Electricity; Magnetic Effects of Electric Current) (13 marks).
Is the CBSE 10th Science model question paper 2027 the same as the sample paper?
Yes. CBSE calls it the sample question paper (SQP); students also search for it as the 10th Science model question paper or model test paper – it is the same official paper on this page.
Will the board exam paper be the same as the sample paper?
No – the CBSE Class 10 board exam 2027 has different questions, but it follows the same pattern as the sample paper: the same sections, marks and question types.