Create CBSE Class 10 Science board-pattern question papers in seconds — fully aligned with the 2025-26 examination format. Every paper includes all 5 sections (A to E) covering Physics, Chemistry & Biology, 50% competency-based questions, case study problems, and step-wise marking schemes with answer keys.
Supports full-syllabus board papers, chapter-wise unit tests, half-yearly papers, and subject-stream filters (Physics-only, Chemistry-only, or Biology-only). Trusted by 5,000+ CBSE schools and science teachers across India.
No sign-up required • PDF & DOCX download • Answer key included
The CBSE Class 10 Science Question Paper Generator by SchoolDeck is a free AI-powered tool that helps teachers, tutors, and students create board-pattern question papers for Science (Code 086) within minutes. It covers all three streams — Physics, Chemistry, and Biology — in a single integrated paper, exactly as CBSE prescribes.
Whether you need a full board exam mock paper, a chapter-wise unit test, a half-yearly examination, or quick revision worksheets by subject stream — this generator produces professionally formatted papers that exactly match the CBSE 2025-26 examination blueprint, including the latest competency-based and source-based question formats mandated by CBSE under NEP 2020.
Every generated paper comes with a detailed step-wise marking scheme and includes diagram-labelling questions, experimental observation questions, and real-world application problems across all chapters. The tool handles scientific symbols, equations, circuit diagrams, and ray diagrams with professional precision.
Official 80-Mark Theory Paper Blueprint — Unit-Wise Weightage
| Unit No. | Unit Name | Key Chapters | Marks |
|---|---|---|---|
| I | Chemical Substances — Nature & Behaviour Chemistry | Chemical Reactions & Equations, Acids Bases & Salts, Metals & Non-metals, Carbon & Its Compounds | 25 |
| II | World of Living Biology | Life Processes, Control & Coordination, How Do Organisms Reproduce?, Heredity | 25 |
| III | Natural Phenomena Physics | Light — Reflection & Refraction, Human Eye & the Colourful World | 12 |
| IV | Effects of Current Physics | Electricity (Ohm's Law, Resistances, Power), Magnetic Effects of Electric Current | 13 |
| V | Natural Resources Environmental Science | Our Environment (Eco-systems, Food Chains, Ozone Depletion, Waste Management) | 05 |
| Total Theory Examination | 80 | ||
| Internal Assessment | 20 | ||
| Grand Total | 100 | ||
Source: CBSE Academic Session 2025-26 Curriculum for Science (Code 086). Chemistry and Biology each carry the highest weightage of 25 marks (31.25% each).
The SchoolDeck generator precisely follows this 5-section structure in every paper
18 standard MCQs + 2 Assertion-Reasoning questions. Tests quick conceptual recall and basic application across all 5 units. Covers balanced mix of Physics, Chemistry, Biology, and Environmental Science topics. No negative marking.
6 questions with internal choice in two. Requires concise 2-3 line answers. Covers writing balanced chemical equations, identifying types of reactions, short definitions of biological terms, and simple numerical problems in Electricity and Light.
7 questions with internal choice in two. Multi-step answers of 50–80 words. Includes labelled diagrams (reproductive system, nephron, eye, circuit diagrams), chemical property comparisons, explanation of biological processes, and resistance calculation problems.
3 detailed questions with internal choice, each requiring 100–150 word explanations. Topics include detailed life processes (photosynthesis, respiration, excretion), properties of metals and non-metals with reactions, complete ray diagrams with numerical (mirror/lens formula), Ohm's Law experiments, and AC vs DC generation.
3 passage-based or data-based questions with 2–3 sub-parts each. Real-world applications: chemical industry scenarios, ecology and environmental data interpretation, experimental observations in Physics. Essential for the 50% competency-based scoring mandate under NEP 2020.
| Section | Questions | Marks Each | Total Marks | Internal Choice |
|---|---|---|---|---|
| A — MCQ + A/R | 20 | 1 | 20 | No |
| B — VSA | 6 | 2 | 12 | Yes (2 Qs) |
| C — SA | 7 | 3 | 21 | Yes (2 Qs) |
| D — LA | 3 | 5 | 15 | Yes (All 3) |
| E — Case / Source | 3 | 4 | 12 | Yes (in sub-parts) |
| Total | 39 Questions | 80 Marks | ||
4 simple steps — no sign-up needed to get started
Choose CBSE → Class 10 → Science (Code 086). The tool auto-loads the official 2025-26 syllabus, chapter list, and board blueprint instantly.
Select full syllabus or specific chapters. Filter by Physics, Chemistry, Biology, or mix. Set difficulty as Easy, Medium, Hard, or Mixed.
Select Board Exam Pattern (full 80-mark), Unit Test, Half Yearly, Pre-Board, or Worksheet. The AI automatically applies the correct section structure and marks split.
Click Generate. Review the full paper with step-wise marking scheme on screen. Download as PDF or DOCX with or without the answer key.
Our question bank covers all 13 chapters across Physics, Chemistry, Biology & Environmental Science — post-rationalisation syllabus 2025-26
Built for the unique challenges of Class 10 Science — three subjects, one paper, one blueprint
Automatically generates questions requiring labelled diagrams — human eye, reflex arc, reproductive system, nephron, ray diagrams for mirrors and lenses, electric circuit schematics, and more.
The AI engine automatically maintains the official unit-wise marks distribution — Chemistry (25), Biology (25), Physics (25), Environment (5) — without any manual calculation or adjustment.
Every paper automatically includes the CBSE-mandated proportion of HOTS, application, analysis, and evaluation-level questions — preparing students for the actual board paper format.
Every solution is broken down with marks allocated per step — including partial marks for diagrams — exactly matching official CBSE board checking standards for evaluators.
Includes questions based on NCERT lab experiments — Ohm's Law verification, identification of acids/bases, observation of osmosis, and more — crucial for board examination preparation.
Generate multiple unique papers from the same chapter selection — perfect for Set A/B/C, pre-board series, and ensuring no two students get identical questions.
Rich bank of passage-based, table-based, and graph-interpretation questions across all three subjects — from food chain data to circuit readings to chemical reaction observations.
Download the question paper and answer key separately. Add your school name, logo, exam date, and roll number fields before printing. Fully print-ready formatting.
Save 3-4 hours per paper. Generate unit tests, half-yearly papers, and pre-board mocks in minutes. Focus on teaching, not paper-setting.
Create audit-ready, blueprint-compliant papers across all sections and sets. Ensure consistent difficulty across classes with automated balancing.
Practice with unlimited board-pattern mock papers across all subjects. Understand step-wise evaluation and master the case-study format before the actual board exam.
SchoolDeck also helps automate the documentation and paper generation for the 20-mark internal component:
5 Marks — Best of two pen-paper tests conducted during the year
5 Marks — Oral quiz, concept maps, role-play, or class presentations
5 Marks — Classwork, assignments, and best work evidence portfolio
5 Marks — Science practical work based on NCERT lab manual activities
Starting from the 2024-25 academic session, CBSE mandates that approximately 50% of the questions in the Class 10 Science board paper must be competency-based. These questions test a student's ability to apply scientific concepts to real-life or unfamiliar situations, interpret data, draw conclusions from experiments, and demonstrate higher-order thinking (HOTS) — rather than simply recalling textbook facts.
Examples of competency-based questions in Class 10 Science include:
SchoolDeck's AI generator automatically maintains the correct 50% competency-based ratio across all sections — ensuring your papers fully comply with the CBSE 2025-26 assessment framework and genuinely prepare students for the board examination.
Everything you need to know about generating CBSE Class 10 Science question papers
The CBSE Class 10 Science theory paper carries 80 marks across 5 units: Chemical Substances — Nature & Behaviour / Chemistry (25 marks), World of Living / Biology (25 marks), Natural Phenomena / Physics — Light (12 marks), Effects of Current / Physics — Electricity & Magnetism (13 marks), and Natural Resources / Environment (5 marks). Internal Assessment carries an additional 20 marks, making the total 100 marks.
Yes. Every board-pattern paper includes 3 Case/Source-Based questions in Section E (3 × 4 = 12 marks). These are passage-based or data-based questions with 2–3 sub-parts, drawn from real-world applications of Physics, Chemistry, and Biology, as per the latest CBSE guidelines for 2025-26.
Yes. You can use the subject stream filter to generate papers with questions only from Physics (Chapters 9–12), Chemistry (Chapters 1–4), Biology (Chapters 5–8), or any combination. The AI auto-adjusts the section structure and total marks based on your chapter selection — ideal for subject-specific unit tests.
The paper has 5 sections totaling 39 questions for 80 marks: Section A — 20 MCQs (including 2 Assertion-Reasoning) for 20 marks; Section B — 6 Very Short Answer questions for 12 marks; Section C — 7 Short Answer questions for 21 marks; Section D — 3 Long Answer questions for 15 marks; Section E — 3 Case/Source-Based questions for 12 marks. Sections B, C, and D have internal choice options.
Yes. The generator automatically includes diagram-labelling and ray-diagram questions — such as labelling the human eye, nephron, cross-section of a leaf, flower parts, and drawing ray diagrams for concave/convex mirrors and lenses. Marking schemes clearly allocate marks for diagram accuracy and labelling.
Yes. The SchoolDeck question bank is fully updated for the 2025-26 rationalised syllabus. Deleted chapters such as Periodic Classification of Elements and Sustainable Management of Natural Resources are excluded. The generator only draws from the 13 chapters currently prescribed by CBSE for Class 10 Science.
Yes. SchoolDeck offers a free tier for generating CBSE Class 10 Science question papers with answer keys and marking schemes — no credit card or sign-up required to get started. Premium plans unlock unlimited generation, custom school branding, bulk set generation (A/B/C/D), and priority support.
As per CBSE's circular for 2025-26, approximately 50% of the total questions in Class 10 Science will be competency-based — testing application, analysis, and higher-order thinking skills (HOTS). SchoolDeck automatically maintains this ratio in every generated paper across all five sections.
Yes. The generator supports multiple exam formats: Full Board Exam (80 marks), Pre-Board Mock (80 marks), Half Yearly (restricted to first-half syllabus chapters), Quarterly, Unit Tests (20–30 marks), and Chapter-wise Worksheets. Each format auto-applies the appropriate paper structure, section breakdown, and marks allocation.
Yes. The generator includes numerical problems for all Physics chapters — mirror and lens formula calculations (with sign conventions), resistance and current calculations (Ohm's Law, series/parallel circuits), power and energy problems, and focal length/magnification problems. All numericals come with full step-wise solutions and marks allocation per step.
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