CBSE Class 10 2025 Science Weightage: CBSE has released the revised syllabus for Science along with chapter-wise weightage. Candidates can download the syllabus from the official website of CBSE. Referring to the syllabus, candidates can create a strategic study plan for comprehensive coverage of all the topics.
The CBSE class 10 2025 Science syllabus comprises a total of five units. Each chapter and unit has significant weights for the board exam. This comprehensive guide provides detailed CBSE class 10 2025 Science weightage.
CBSE Class 10 2025 Science Highlights
The following table includes notable highlights of CBSE class 10 2025 Science:
|
Particulars |
Details |
|
Subject |
Science |
|
Exam conducting body |
Central Board of Secondary Education (CBSE) |
|
Exam Duration |
3 Hours |
|
Mode of Exam |
Offline |
|
No. of chapters |
Units: 5 Chapters: 13 |
|
Medium of Exam |
English / Hindi |
|
Type of Questions |
MCQs Short answer type questions Long answer type questions |
|
Internal Assessment marks |
20 |
|
Marks allotted to theory paper |
80 |
|
Total marks |
100 |
|
Passing Marks |
33% in aggregate |
CBSE Class 10 Science Syllabus 2025
The detailed CBSE Class 10 Science Syllabus for the academic year 2024-25 is provided below, featuring unit-wise chapters. Students must cover all the topics in the latest Science syllabus to pass the board exam with excellent scores:
|
Unit No. |
Unit Name |
Chapter |
|
1 |
Chemical Substances – Nature and Behaviour |
Chemical Reactions |
|
Acids, Bases, and Salts |
||
|
Metals and Non-Metals |
||
|
Carbon Compounds |
||
|
2 |
World of Living |
Life Processes |
|
Control and Co-ordination in Animals and Plants |
||
|
Reproduction |
||
|
Heredity and Evolution |
||
|
3 |
Natural Phenomenon |
Light - Reflection and Refraction |
|
Human Eye and the Colourful World |
||
|
4 |
Effect of Current |
Electricity |
|
Magnetic Effects of Current |
||
|
5 |
Natural Resources |
Our Environment |
Unit-Wise CBSE Class 10 2025 Science Weightage
The table below provides the unit-wise allocation of marks for the CBSE class 10 Science syllabus 2025:
|
Unit No. |
Unit Name |
Marks |
|
1 |
Chemical Substances – Nature and Behaviour |
25 |
|
2 |
World of Living |
25 |
|
3 |
Natural Phenomenon |
12 |
|
4 |
Effects of Current |
13 |
|
5 |
Natural Resources |
05 |
|
Theory Marks |
80 |
Chapter-Wise CBSE Class 10 2025 Science Weightage
The following table provides details of chapter-wise CBSE class 10 2025 Science weightage:
|
Chapter No. |
Chapter Name |
Marks |
|
I |
Chemical Reactions and Equations |
6 |
|
2 |
Acid, Bases and Salts |
3 |
|
3 |
Metals and Non-Metals |
10 |
|
4 |
Carbon and its Compounds |
6 |
|
5 |
Life Processes |
9 |
|
6 |
Control and Coordination |
6 |
|
7 |
How do Organisms Reproduce? |
3 |
|
8 |
Heredity and Evolution |
7 |
|
9 |
Light- Reflection and Refraction |
10 |
|
10 |
The Human Eye and the Colourful World |
2 |
|
11 |
Electricity |
7 |
|
12 |
Magnetic Effects of Electric Current |
6 |
|
13 |
Our Environment |
5 |
Chapters Removed from CBSE Class 10 2025 Science
CBSE has removed specific topics from the CBSE class 10 Science syllabus 2024-25. Following are the deleted sections of the class 10 Science:
|
Chapter |
Deleted Topics |
|
Periodic Classification of Elements |
Entire Chapter |
|
Human Eye and the Colourful World |
Use of scattering to explain changes in the colour of the Sun during sunrise and sunset |
|
Heredity and Evolution |
fundamental of evolution Evolution and its classification Evolution not equated with progress |
|
Sources of Energy |
Entire Chapter |
|
Magnetic Effects of Current |
Electric motor Electric generator Electromagnetic induction Induced current Induced potential difference Fleming's Right Hand Rule |
|
Management of Natural Resources |
Entire chapter |
CBSE Class 10 2025 Science Exam Pattern
The theory exam of CBSE class 10 Science carries a total of 80 marks, and the exam duration spans 3 hours. After getting the question paper, students are provided with an additional 15 minutes to read the paper.
Below is a breakdown of the detailed structure of the CBSE class 10 Science question paper with a marking scheme:
|
Section |
Question Type |
No. of Questions |
Marks per Question |
Weightage (in Marks) |
|
A |
MCQs |
20 |
1 |
20 |
|
B |
Short Answer Type - I |
6 |
2 |
12 |
|
C |
Short Answer Type - II |
7 |
3 |
21 |
|
D |
Long Answer Type |
3 |
5 |
15 |
|
E |
Case Study Based |
3 |
4 |
12 |
Start a strategic and diligent preparation for the CBSE class 10 Board exam with PW Gulf Foundation Coaching. Join now for detailed syllabus coverage and conceptual clarity under the guidance of expert faculties.
CBSE Class 10 2025 Science Weightage FAQs
Q1. Which chapter has the most weightage for science class 10?
Ans. Light-refraction & reflection and Metals & Non-metals carry the highest weightage in the CBSE class 10 board exam.
Q2. Which section in class 10 Science exam has highest weightage?
Ans. Section C of the class 10 Science exam carries the highest weightage.
Q3. What is the hardest chapter in 10th Science?
Ans. Electricity, Chemical Reaction and Equation, and Human Eye are the toughest chapters in class 10 Science.
Q4. How many marks are allocated to class 10 Science internal assessment?
Ans. 20 marks are allocated to class 10 Science internal assessment.
Q5. Has CBSE reduced class 10 2025 Science syllabus?
Ans. Yes, the board has reduced the class 10 Science syllabus for the academic year 2024-25. Nearly 30% of the overall syllabus has been reduced.