Each chapters and topics in BSEB 10th Science exam has different weightage. Knowing about the weightage helps students prioritise topics accordingly. Check here BSEB 10th Science Weightage 2026!
The BSEB Class 10 Science Weightage 2026 helps you identify the most important sections, units, and chapters you should focus on if you want to score high in the board exam. The BSEB Class 10 Exam 2026 for Science paper will be held for a total of 100 marks and will comprise 80 marks for theory and 20 marks for internal assessment. Out of the theory section, Section B (Short Answer Type) carries the highest weightage of 60 marks, followed by Section C (Long Answer Type) with 40 marks, which means these two sections are the key ones for scoring.
Chemical Compounds (29%) has the highest weight at the unit level, and the Physics and Biology chapters together have the highest chapter-wise weight of 27 marks each (33.75%). Furthermore, practicals will be equally important because experiments are the primary component of the internal assessment with a 55% weight. You can create an effective, goal-oriented preparation plan by being aware of these high-weightage sections.
BSEB 10th Science Exam Pattern 2026
The Bihar School Examination Board (BSEB) Class 10 Science examination 2026 is designed to test your deep understanding of concepts, your analytical skills, and your level of knowledge of the subject. Section B and Section C together have the highest mark allocation in the theory paper among all the sections. Section B, which includes short-answer questions from Physics, Chemistry, and Biology, is 60 marks in total and hence, the highest-scoring Section in the paper. Prioritizing Section B is a strategy for increasing your score that should be balanced with focusing on other areas to gain more marks overall.
|
Section |
Type of Questions |
Questions to be Answered |
Marks per Question |
Total Questions |
Total Marks |
|
Section A |
Objective Type (MCQs) |
40 |
1 |
80 |
40 |
|
Section B (Chemistry) |
Short Answer Type |
4 |
5 |
8 |
20 |
|
Section B (Physics) |
Short Answer Type |
4 |
5 |
8 |
20 |
|
Section B (Biology) |
Short Answer Type |
4 |
5 |
8 |
20 |
|
Section C |
Long Answer Type |
4 |
10 |
8 |
40 |
|
Total (Theory) |
— |
— |
— |
— |
80 Marks |
|
Practical / Internal Assessment |
— |
— |
— |
— |
20 Marks |
|
Grand Total |
— |
— |
— |
— |
100 Marks |
Also Read: BSEB 10th Science Exam Pattern 2026
BSEB 10th Science Unit-Wise Weightage 2026
The Bihar School Examination Board (BSEB) Class 10 Science syllabus 2026 is comprised of five major units, which vary in their contribution to the total theory marks. Chemical Compounds accounts for the highest portion of the marks, at 29%; thus, they are the most essential part of the theory exams to master. It is followed by The Living World (24%) and Electricity and Its Effects (21%), which are also important parts of the syllabus. Knowing the marks distribution of units and weightage can help you to efficiently organize their preparation and give priority to the topics that will give you marks.
|
Unit |
Weightage (%) |
Marks |
|
Chemical Compounds |
29% |
25 |
|
Electricity and its Effects |
21% |
18 |
|
The Living World |
24% |
20 |
|
Natural Resources |
12% |
10 |
|
Light and Communication |
14% |
12 |
|
Total |
100% |
85 |
Also Read: BSEB 10th Science Syllabus 2026
BSEB 10th Science Chapter-Wise Weightage 2026
The Bihar Board Class 10 Science syllabus 2026 comprises study topics from Physics, Chemistry, and Biology, each having a different contribution to the 80 marks theory portion. Among the different units, Physics (Reflection of Light & Human Eye and the Colourful World topics) and Biology (Life Processes and related chapters) have the maximum weight of 27 marks each or 33.75%, hence, they are of utmost importance for the exam. Chemistry follows closely with 26 marks (32.5%). A careful study of chapter-wise weightage will help you narrow down your high-scoring topics and put together a smart study timetable well in advance.
|
Subject Area |
Chapter Name |
Weightage (%) |
Marks |
|
Physics |
Reflection of Light |
33.75% |
27 |
|
Refraction of Light |
|||
|
Electricity |
|||
|
Human Eye and the Colourful World |
|||
|
Magnetic Effect of Electric Current |
|||
|
Sources of Energy |
|||
|
Chemistry |
Chemical Reactions and Equations |
32.5% |
26 |
|
Metals and Non-metals |
|||
|
Acids, Bases, and Salts |
|||
|
Periodic Classification of Elements |
|||
|
Carbon and its Compounds |
|||
|
Biology |
Life Processes |
33.75% |
27 |
|
Transportation |
|||
|
Respiration |
|||
|
Control and Coordination |
|||
|
Excretion |
|||
|
Heredity and Evolution |
|||
|
Reproduction |
|||
|
Our Environment |
|||
|
Total |
— |
100% |
80 |
Also Read: BSEB 10th Science Deleted Syllabus 2026
BSEB 10th Science Internal Assessment Weightage 2026
Internals for the BSEB Class 10 Science 2026 examination are marked out of 20 and have a significant impact on the final score. Experiments carry more than half of the internal assessment marks, making them the most crucial component. You are encouraged to take laboratory work and project submissions seriously because it is often easier to score well on internal assessments than in theory.
|
Component |
Marks |
Weightage (%) |
|
Experiments |
11 |
55% |
|
Viva Voce |
3 |
15% |
|
Project File |
6 |
30% |
|
Total |
20 |
100% |
Also Read: BSEB 10th Science Previous Year Question Paper 2026
How to Score High using BSEB 10th Science Weightage 2026?
Given below are some of the points on how to Score High using BSEB 10th Science Weightage 2026:
- Prioritize high-weighted sections, such as Sections B and C, as they collectively earn you the highest possible score in the theory paper.
- Short-answer questions are straightforward, concept-based, and simpler to earn full marks on, so make sure to practice them frequently.
- You can develop your long-answer writing abilities by using formulas to explain the steps clearly in writing, along with properly labeled diagrams.
- To earn easy marks, improve your MCQ preparation by regularly reviewing and practicing questions from prior years.
- To achieve an overall perfect score in internal assessment, work hard on doing well in the experiments, keeping your project file organized, and preparing effectively for your viva.
- Prepare a high-weighted-topics study schedule with timelines so that important topics get more revision.
- Try answering multiple-choice questions (MCQs) first, then short answers, and finally long answers to efficiently manage your time during the test.
- Solve previous-year papers and sample papers to understand question trends and enhance accuracy and speed.
-
Total Science exam: 100 marks (80 theory + 20 internal). -
Section B (Short Answer) has highest weight: 60 marks. -
Chemical Compounds unit carries 29% highest weight. -
Physics & Biology chapters: 27 marks each (33.75%).
