NCERT Solutions Class 10 Science — Full Book Notes, MCQs and Important Questions
If you are preparing for the CBSE Class 10 board exam, these ncert solutions class 10 science notes cover the complete NCERT Science textbook in one free, full-book PDF — chapter-wise notes, solved questions and practice material, written in simple language so you can revise the whole book without jumping between ten different websites.
Science is one paper, but it carries four subjects inside it: Chemistry, Biology, Physics and Environment. Most students lose marks not because the paper is hard, but because they revise one part well and leave another weak. This book fixes that — every chapter gets the same treatment: short notes, then questions to practise.
What Is Inside the PDF
The 108-page ncert solutions class 10 science PDF covers all 13 chapters. Every chapter has the same structure:
- Notes first: the important concepts of the chapter in short, clear points — definitions, key facts, formulas and reactions you need to remember. The notes are written for revision, not for memorising long paragraphs.
- 10 MCQs with an answer key: 130 in total. The CBSE paper now gives a large share of marks to competency-based and objective questions, so MCQ practice is not optional. Check your answers from the key at the end of each chapter.
- 5 solved short questions: 65 in total, with answers written the way a board answer should be — direct, complete and to the point.
- 2 solved long questions: 26 in total, covering the bigger topics that usually carry 3 or 5 marks.
That is 130 MCQs, 65 short questions and 26 long questions — all solved, all from the NCERT book itself, all answers written in our own words. This is practice material, not an official CBSE paper.
NCERT Solutions Class 10 Science — All 13 Chapters
Here is the complete chapter list, grouped the way the book itself is organised:
Chemistry — Chapters 1 to 4
- Chemical Reactions and Equations
- Acids, Bases and Salts
- Metals and Non-metals
- Carbon and its Compounds
Biology — Chapters 5 to 8
- Life Processes
- Control and Coordination
- How do Organisms Reproduce?
- Heredity
Physics — Chapters 9 to 12
- Light – Reflection and Refraction
- The Human Eye and the Colourful World
- Electricity
- Magnetic Effects of Electric Current
Environment — Chapter 13
- Our Environment
Chemistry carries the largest share of the theory paper, followed closely by Biology. Physics is four long chapters — do not leave it for the last week. Our Environment is one short chapter of easy marks — revise it fully.
CBSE Class 10 Science Paper Pattern
The pattern below is reproduced from third-party sources based on CBSE sample papers, not an official CBSE quote — confirm it on cbseacademic.nic.in before your exam.
- Theory paper: 80 marks, 3 hours. Internal assessment: 20 marks. Total: 100 marks.
- Passing marks: 33% in theory and 33% in internal assessment separately.
- Theory paper structure (80 marks): Section A — 20 MCQs, 20 marks; Section B — 6 short-answer questions of 2 marks each, 12 marks; Section C — 7 short-answer questions of 3 marks each, 21 marks; Section D — 3 long-answer questions of 5 marks each, 15 marks; Section E — 3 case-based questions of 4 marks each, 12 marks.
- Unit-wise weightage (theory, 80 marks): Chemical Substances — Nature and Behaviour: 25 marks; World of Living: 25 marks; Natural Phenomena: 12 marks; Effects of Current: 13 marks; Natural Resources: 5 marks. This weightage is third-party reproduced from CBSE sample papers, not an official CBSE statement.
- Internal assessment (20 marks): periodic tests, practical work and portfolio, split as set by your school under CBSE guidelines.
Note: from 2026, CBSE holds the Class 10 exam twice a year. The next date sheet had not been released at the time of writing, so no exam date is given here — check cbseacademic.nic.in when it is published.
How to Use This PDF
Do not read this book like a novel. Use it in three rounds:
Round 1 — Learn: read the notes of one chapter, then answer its 10 MCQs without looking at the key. Read the short and long answers and compare them with your own. One chapter a day finishes the whole book in 13 days.
Round 2 — Revise: re-do only the MCQs and questions you got wrong the first time, using the answer keys in the PDF.
Round 3 — Practise with papers: in the last weeks, solve official CBSE sample papers and previous year papers in 3 hours, no book, no phone. CBSE publishes its sample papers with marking schemes free at cbseacademic.nic.in. Use those first: they show exactly how CBSE frames questions. Our PDF gives you the chapter knowledge; the sample papers show you how that knowledge is tested.
Keep a small notebook for the formulas you keep forgetting — chemical equations (Chapters 1–4), ray diagrams (Chapter 9), circuit formulas (Chapter 11). Revise that notebook, not the whole PDF, in the last three days.
Sample Papers and Previous Year Papers
Use two more things alongside these notes:
- CBSE sample papers: CBSE releases official sample papers with marking schemes for the current session on cbseacademic.nic.in. Solve the Science sample paper fully — the marking scheme shows how many marks each step of an answer earns.
- Previous year question papers: actual past board papers, year-wise. They show which chapters CBSE asks most often. Use only papers CBSE has released publicly, and note the year and session.
This PDF is neither a CBSE sample paper nor a previous year paper. It is a notes and practice book built from the NCERT textbook — use it together with the official papers, not instead of them.
Important Questions — How to Use Them
The short and long questions in this PDF are each chapter’s important questions — chosen from the NCERT exercises, previous year papers and chapter weightage. They are practice material, not a leaked paper and not a confirmed question list. CBSE issues no official guess paper, and nobody can tell you the exact questions of the next exam. Use them the honest way: if you can answer every question in a chapter without the book, that chapter is ready. If not, revise the notes and try again. That is the whole method.
Download the Free PDF
Download the Class 10 Science Notes PDF
The PDF is free to download and print — all 13 chapters, 130 MCQs with answer keys, 65 solved short questions and 26 solved long questions. Share it with classmates who need it.
Please Note
This is an independent study guide by Zahid Notes. We are not affiliated with CBSE, NCERT or any board, and this book is not an official CBSE or NCERT publication. The chapter list follows the 2026-27 rationalised NCERT edition — check it against the book issued to you. The paper pattern and weightage above are third-party reproduced from CBSE sample papers, not officially confirmed — confirm them on cbseacademic.nic.in. No exam date is printed here: the 2027 date sheet had not been released at the time of writing. All notes, solutions and questions are written in our own words; the official NCERT textbook PDFs are free on ncert.nic.in.
Final Word
Good ncert solutions class 10 science material does one thing: it makes the whole book feel small. Thirteen chapters, one PDF, one chapter a day — test yourself with the MCQs, and finish with the official sample papers. Start Chapter 1 today — by Chapter 13 the board paper will feel familiar, not frightening. Download the PDF above and begin.