CBSE Class 10 Science Answer Key 2026 Out: The CBSE Class 10 Science Exam 2026 was successfully conducted on 25 February 2026 by the Central Board of Secondary Education (CBSE) for the academic session 2025–26. The examination was held in offline (pen and paper) mode during the morning shift from 10:30 AM to 1:30 PM. The theory paper carried 80 marks, while the remaining 20 marks were allotted through internal assessment by schools.
After stepping out of the exam hall, it’s completely natural for students to feel a mix of relief and confusion. Some questions may keep running in your mind. To help students analyze their performance, the complete CBSE Class 10 Science Answer Key 2026 is now available. With the help of this answer key, students can match their responses, estimate their probable score, and understand where they may have lost marks.
CBSE Board Class 10 Science 2026 – Exam Overview
The CBSE Class 10 Board Exams 2026 are being conducted from 17 February 2026 to 11 March 2026. These exams evaluate students’ conceptual understanding and application skills developed throughout the academic year. Science is one of the most important subjects in Class 10 as it builds the foundation for higher studies in Science stream.
Here are the key details of the CBSE Class 10 Science Board Exam 2026:
| Particulars | Details |
|---|---|
| Exam Conducting Body | Central Board of Secondary Education (CBSE) |
| Academic Session | 2025–2026 |
| Exam Name | CBSE Class 10 Board Exam 2026 |
| Exam Mode | Offline (Pen and Paper Mode) |
| Subject | Science |
| Total Marks | 100 Marks (Theory + Internal Assessment) |
| Theory Exam Marks | 80 Marks |
| Internal Assessment | 20 Marks (Tests, Assignments, Practical Work) |
| Exam Duration | 3 Hours |
| Passing Marks | Minimum 33% |
| Science Exam Date | 25 February 2026 |
| Official Website | https://cbse.gov.in |
| Reference Book | NCERT Class 10 Science |
Students are advised to calculate their marks carefully as per the official marking scheme for accurate estimation.
CBSE Class 10 Science 2026 Question Paper PDF (All Sets)
The CBSE Class 10 Science Question Paper 2026 PDF is available for all sets conducted on 25 February 2026 (10:30 AM – 1:30 PM). Students can download their respective set and cross-check answers with the solution key.
| CBSE Class 10 Science 2026 Sets | Answer Key PDF | |
|---|---|---|
| Science Set 1 | Download Answer Key | |
| Science Set 2 | Download Answer Key | |
| Science Set 3 | Download Answer Key |
Downloading all sets can also help students practice and understand variations in questions.
You may also check:
- CBSE Class 10 Maths Answer Key 2026
- CBSE Class 10 English Answer Key 2026
CBSE Class 10 Science 2026 Paper Pattern & Structure
The CBSE Class 10 Science Question Paper 2026 followed the latest blueprint provided in the official sample paper for session 2025–26. The paper was designed to test conceptual clarity, diagrams, experiments, numericals, and case-study-based analytical skills from Physics, Chemistry, and Biology.
Below is the expected structure of the Science Board Exam 2026:
| Section | Question Numbers | Type of Questions | Marks per Question | Total Marks |
|---|---|---|---|---|
| A | 1–20 | MCQs | 1 Mark | 20 |
| B | 21–26 | Very Short Answer | 2 Marks | 12 |
| C | 27–33 | Short Answer | 3 Marks | 21 |
| D | 34–36 | Long Answer | 5 Marks | 15 |
| E | 37–39 | Case Study-Based | 4 Marks | 12 |
| Total | 39 Questions | All Compulsory | — | 80 |
Internal choices were provided in selected questions from Sections B to E.
Most questions were directly or indirectly based on NCERT textbooks, examples, and in-text exercises.
Important Instructions Followed in the Exam
Students were advised to:
- Draw neat and properly labeled diagrams wherever required.
- Write balanced chemical equations correctly.
- Show complete steps in numerical questions.
- Read case study questions carefully before answering.
- Avoid using calculators (not allowed in the exam hall).
- Attempt all questions as they were compulsory.
Following these instructions carefully plays a major role in securing full marks.
Class 10 Science 2026 Answer Key – Why It Is Important?
The Class 10 Science Answer Key 2026 is extremely helpful for students who want to evaluate their performance immediately after the exam.
With the help of the answer key, students can:
- Match their answers with correct solutions
- Calculate expected marks
- Identify mistakes
- Analyze weak topics
- Prepare better for upcoming exams
However, students should award marks to themselves strictly according to the official CBSE marking scheme to avoid overestimation.
CBSE Class 10 Science 2026 Exam Analysis
After the exam conducted on 25 February 2026, feedback from students and teachers suggested that the paper was balanced and student-friendly.
As Per Students:
- The overall difficulty level was moderate.
- Many questions were directly from NCERT.
- Physics numericals were slightly lengthy but manageable.
- Chemistry equations were simple and straightforward.
- Biology case-study questions were easy to understand.
As Per Teachers:
- The paper was well-structured and balanced.
- No out-of-syllabus questions were found.
- Concept-based and application-based questions were included.
- Students who practiced sample papers could score high marks.
Overall, the CBSE Class 10 Science 2026 paper followed the latest pattern and rewarded conceptual clarity.
How to Use CBSE Class 10 Science 2026 Answer Key Properly?
Follow these simple steps to calculate your probable score:
- Download the official or expert answer key PDF.
- Match your answers section-wise.
- Assign marks according to the official marking scheme.
- Add all section-wise marks carefully.
- Compare your estimated marks with previous result trends.
This process will give you a clear and realistic idea of your performance.
FAQs: CBSE Class 10 Science Answer Key 2026 Out
Q1. When was the CBSE Class 10 Science Board Exam 2026 conducted?
The exam was conducted on 25 February 2026 from 10:30 AM to 1:30 PM.
Q2. Where can I download the Class 10 Science 2026 answer key?
Students can download unofficial answer keys from educational websites after the exam. The official answer key will be available if released by CBSE.
Q3. How can I calculate my marks using the answer key?
Match your answers with the correct solutions and assign marks according to the official marking scheme mentioned in the question paper.
Q4. Was the Class 10 Science 2026 paper difficult?
As per feedback, the paper was moderate in difficulty and mostly based on NCERT textbooks.
Q5. Are all questions compulsory in the Science exam?
Yes, all questions are compulsory, but internal choices are provided in some sections.
Conclusion
The CBSE Class 10 Science Answer Key 2026 is a valuable resource for students eagerly waiting for their results. Remember, board exams are important, but they are not the final destination. Small mistakes do not define your abilities. What truly matters is your understanding of concepts and continuous improvement.
Stay confident, trust your preparation, and focus on your next goal.
Read More: Yuva Unstoppable Scholarship 2026
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