Students can check here the CBSE Class 10 Science chapters, which will help them, score high in the board exams. Check CBSE Class 10 Science scoring chapters here for Physics, Chemistry and Biology. Also, check out the CBSE Class 10 Science marking scheme and more…
CBSE Class 10 Science: Most Scoring Chapters – The Central Board of Secondary Education (CBSE) conducted the CBSE Class 10 board exams 2026 between February 17 and March 11, 2026 in pen and paper format. The CBSE 10th Science exam 2026 was held on February 25, 2026.
Students preparing for the CBSE 10th Science exam 2026 must go through the CBSE Class 10 Syllabus 2026 for Science. This article shares the most scoring chapters in CBSE 10th Science subject. Students can check out the distribution of marks to various Science chapters (Physics, Chemistry and Biology) and plan a preparation strategy on finishing the chapters with high weightage first. However, they must remember that to ace the exams, they must study all the topics and chapters mentioned in the CBSE Class 10 Science syllabus.
Also read: Check detailed Phase 1 CBSE Class 10 exam dates 2026
CBSE Class 10 Science Marking Scheme 2026
Students can check the marking scheme followed in CBSE Class 10 Science exam 2026 in the table below.
| Section A: Objective-type Questions (20 Marks)
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| Section B: Short-Answer-Type Questions-I (12 Marks)
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| Section C: Short-Answer-Type Questions-II (21 Marks)
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| Section D: Long-Answer-Type Questions (15 Marks)
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| Section E: Source-Based/Case-Based Questions (12 Marks)
|
Also read: CBSE Class 10 exam pattern 2026
Commonly asked questions
CBSE 10th Sample Question papers 2026 are released officially and can be downloaded from the official website- cbseacademic.ac.in. The CBSE Class 10 SQPs for previous years are available on this page too. Students can download the same from the links below.
These sample question papers will help students know the difficulty level of the exam. These will also help them manage time while answering paper.
CBSE released the CBSE sample question papers 2026. You can check and download subject-wise CBSE 10th sample papers 2026 by clicking on the link provided here. The CBSE sample papers 2026 class 10 makes students familiar with the exam pattern, marking scheme and more.
Students must practice the CBSE 10th sample papers and previous years question papers for better preparation of the examinations.
You can treat the CBSE sample paper as a mock test and time yourself while answering it. This will make you familiar with the exam pattern and marking scheme, after which you will eventually find the CBSE board paper easy.
You can download the CBSE 10th sample papers and question papers by clicking on the link below:
CBSE released the CBSE Class 10 sample papers 2026 on the official website - cbseacademic.nic.in. Students must download and practice them for better preparation of the exam. The sample papers makes students familiar with the exam pattern, marking scheme etc. Students are advised to solve the sample papers within the stipulated time to learn the time management skills. Students can download the CBSE 10th subject-wise sample papers 2026 by clicking on the link provided.
CBSE Class 10 Science: Most Scoring Chapters
For CBSE Class 10 Science, the most scoring chapters, based on high weightage (approx.25+) marks each for Chem/Bio) and direct questioning, are Life Processes, Metals and Non-metals, Light - Reflection and Refraction, and Electricity. Focusing on these, along with Acid, Bases & Salts and Magnetic Effects, ensures maximum marks efficiently.
Given below are the highest-scoring chapters in CBSE Class 10 Science.
Key Scoring Chapters (Unit-wise Weightage):
Unit 1: Chemical Substances-Nature and Behaviour (approx 25 Marks)
- Metals and Non-metals: High scoring due to direct, factual questions.
- Acids, Bases and Salts: Focus on pH, common salt, and chemical formulas.
- Chemical Reactions and Equations: Focus on balancing and types of reactions.
Unit 2: World of Living (approx 25 Marks)
- Life Processes: The most important, high-weightage chapter; focus on diagrams (nutrition, respiration, excretion).
- Control and Coordination / How do Organisms Reproduce: Important for diagrams and processes.
Unit 3: Natural Phenomena (approx 12 Marks)
- Light – Reflection and Refraction: High-weightage, numerical-heavy, and key ray diagrams.
Unit 4: Effects of Current (approx 13 Marks)
- Electricity: Focus on Ohm's law, numerical problems, and circuit diagrams.
- Magnetic Effects of Electric Current: Important for understanding motors/generators and magnetic field lines.
CBSE Class 10 Science: Most Scoring Chapters: Preparation Tips
- Prioritize Diagrams: Life Processes and Light chapters heavily favor diagram-based questions.
- Chemistry Equations: Practice balancing and the reactivity series.
- Numerical Practice: Focus on Electricity and Light numericals.
- NCERT Exemplar: Solve to tackle higher-order thinking skills (HOTS) questions.
- Do not skip solving CBSE 10th Sample papers and previous years' ques papers
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CBSE 10th second board exam result can be checked online only. Students need to enter required details to download result.
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CBSE 10th second board exam was held for students who passed the first board exam but wanted to improve their scores. The compartment students also appeared for the exam. The best of the two scores means that if the marks of second board exam are higher than the first board. Then, the marks of the s
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Jasleen Kaur Taneja is an education editorial expert at Shiksha.com. She prepares content for school board exams. She has written 1,800+ articles with 2.8 crore reads.
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