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CBSE Class 10 Previous Year Science Question Paper: Check weightage here

The Board will be conducting the CBSE Class 10 Science exam 2026 on February 25. The question paper comprises 39 questions, and all are compulsory. Students can solve the CBSE Class 10 Science previous year question paper to get familiar with the weightage and exam pattern.

CBSE Class 10 Science previous year question paper
CBSE Class 10 Science previous year question paper Credit:Official Website
| Updated on: Oct 08, 2025 | 06:58 PM
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New Delhi: The wait for CBSE board exams 2026 is over. The Central Board of Secondary Education (CBSE) will be conducting the class 10 board exams for the academic year 2025-26 from February 17 to March 9, 2026. The Board will be starting a two-exam format from this academic year, intending to keep exam pressure at bay and provide additional opportunity to improve the marks. 

Science is one of the scoring subjects for students, which also helps in achieving a good grade in the overall aggregate. The CBSE Class 10 Science exam (Subject Code 086) will be held on February 25, 2026. Preparation for CBSE Class 10 Science exam is not complete without solving previous year question papers. Reading CBSE Class 10 Science previous year question paper not only helps in understanding important topics but also helps in improving time management and getting familiar with the exam pattern.

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CBSE Class 10 Science exam 2026 highlights

Board Central Board of Secondary Education (CBSE) 
Standard Class 10 
Subject Science 
Subject code 086
Science exam date February 25, 2026 
Duration 3 hours 
Total number of questions 39

CBSE Class 10 Science Question Paper 2025: Important questions

Long Answer Type Questions: Write the functions of the following parts of human female reproductive system : (I) Ovary (II) Fallopian tube (III) Uterus. State briefly two contraceptive methods used by human males. 

Short Answer Type Questions:  (a) ‘‘Displacement reactions also play a key role in extracting metals in the middle of the reactivity series.’’ Justify this statement with two examples. (b) Why can metals high up in the reactivity series not be obtained by reduction of their oxides by carbon? 


Very Short Answer Type questions: Draw labelled diagrams to show different stages of budding in Hydra.

Multiple Choice Questions: The percentage of solar energy which is not converted into food energy by the leaves of green plants in a terrestrial ecosystem is about : (A) 1% (B) 10% (C) 90% (D) 99%



CBSE Class 10 Science previous year question paper PDF

CBSE Class 10 Science weightage

  • Chemical Substances-Nature and Behaviour: 25
  • World of Living: 25 marks
  • Natural Phenomena: 12 marks
  • Effects of Current: 13 marks
  • Natural Resources: 05 marks
  • Total: 80 marks
  • Internal assessment: 20 marks
  • Grand Total: 100 marks

The board will issue the CBSE Class 10th admit card 2026 through the respective schools. It has also mandated that at least 75 per cent attendance is mandatory to appear in the board exams.



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