CBSE Class 10 Science Answer Key 2026: The Central Board of Secondary Education (CBSE) is the organising body of the CBSE Class 10 board exams. Class 10 Science paper has been organised on February 25, 2026. The CBSE Class 10 Science Answer Key 2026 unofficial has been provided after the exam. They can check the correct answers and access the CBSE Class 10 Science Question Paper 2026.
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CBSE Class 10 Science Answer Key 2026 Overview
The CBSE Class 10 Science exam includes MCQ and numerical questions to solve in 3 hours. The theory paper includes 39 questions, all of which are compulsory to attempt. A science paper carries 80 marks in the theory exam.
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CBSE Class 10 Science Answer Key 2026 Overview |
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Authority Name |
Central Board of Secondary Education (CBSE) |
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Exam Name |
Class 10 Secondary School Examination (Board Exam) |
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Class |
Class 10 |
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Exam Date |
February 25, 2026 |
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Total Marks |
80 Marks (Theory) + 20 Marks (Internal Assessment) |
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Total Questions |
39 Questions (All Compulsory) |
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Official Website |
cbse.gov.in |
CBSE Class 10 Science Answer Key 2026 Download Link
The CBSE Class 10 Science Answer Key 2026 Download Link unofficial has been provided to the students after the exam shift is over. Students can download the Science paper answer and check the responses provided carefully. They can review their attempts in the paper and perform the error analysis accordingly. CBSE Class 10 Science Exam Analysis 2026 provides information related to the overall paper review.
CBSE Class 10 Science Answer Key 2026 Download Link
Significance of CBSE Class 10 Science Answer Key
Once students get the CBSE Class 10 Science Answer Key 2026 can perform self-analysis regarding their exam attempts. They can get clarification on the MCQ-type questions asked in the Science paper.
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Understanding the Step-Wise Marking System: CBSE awards marks for every correct step, even if the final answer is wrong. The answer key shows exactly where a 5-mark question is split (e.g., 1 mark for the diagram, 1 for the formula, and 3 for the derivation).
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Identifying "Value Points" and Keywords: Examiners scan for specific scientific terms or "keywords" identified in the key. Using the answer key helps you identify which phrases are essential to secure full marks in descriptive sections, such as Biology or Chemistry.
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Numerical Accuracy: For Physics and Chemistry, the key specifies the required units and the precision of the final value. It teaches you that missing a unit (like Ω for resistance or W for power) can lead to a half-mark deduction.
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Learning the Ideal Answer Length: The key demonstrates that "more" isn't always "better." It provides the most concise version of an answer, helping you manage your time by not overwriting on 2-mark questions.
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Self-Evaluation and Error Analysis: By comparing your practice papers against the official key, you can objectively find your "blind spots." This helps you realise if you are losing marks due to conceptual errors or simply poor presentation.
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Clarification on Choice Questions: The key outlines the expected content for internal choice questions (OR questions). This helps you understand which topics are frequently paired together, allowing you to strategise which chapters to master thoroughly.
CBSE Class 10 Science Marking Scheme
Students should have knowledge of the CBSE Class 10 Science marking scheme. They can access the answer key to calculate their marks.
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CBSE Class 10 Science Marking Scheme |
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Section |
Question Type |
No. of Questions |
Marks per Question |
Total Marks |
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A |
Objective Type (MCQs, Assertion-Reason) |
20 |
1 |
20 |
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B |
Very Short Answer |
6 |
2 |
12 |
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C |
Short Answer |
7 |
3 |
21 |
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D |
Long Answer |
3 |
5 |
15 |
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E |
Case-Based / Source-Based |
3 |
4 |
12 |
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Total |
39 Questions |
80 Marks |
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