CBSE Class 10 Science Board Papers 2020
The actual CBSE Class 10 Science board exam paper from 2020 — 5 sets, free PDF. Tap any set to open it.
What was tested in Science 2020
Chapter breakdown across the 5 classified 2020 sets (229 questions) — a guide to what this exam emphasised.
- Carbon and its Compounds24 questions10%
- Light - Reflection and Refraction23 questions10%
- Acids, Bases and Salts23 questions10%
- Electricity23 questions10%
- Chemical Reactions and Equations21 questions9%
- Control and Coordination18 questions8%
- Our Environment17 questions7%
- Life Processes17 questions7%
- The Human Eye and the Colourful World15 questions7%
- Metals and Non-metals14 questions6%
- How do Organisms Reproduce12 questions5%
- Magnetic Effects of Electric Current11 questions5%
- Heredity and Evolution11 questions5%
Class 10 Science exam pattern (80 marks)
The theory paper carries 80 marks over 3 hours (39 questions, with internal choice in some). Section-wise structure:
| Section | Questions | Marks each | Total | Type |
|---|---|---|---|---|
| A | 20 | 1 | 20 | MCQ + Assertion–Reason |
| B | 6 | 2 | 12 | Very Short Answer |
| C | 7 | 3 | 21 | Short Answer |
| D | 3 | 5 | 15 | Long Answer |
| E | 3 | 4 | 12 | Case-study / source-based |
| Total | 39 | 80 | 3 hours |
Structure per the CBSE 2023-24 sample-paper design; question wording varies by set.
These are the real CBSE Class 10 Science board question papers for 2020. CBSE runs each exam in several sets across regions — same syllabus, difficulty and marking scheme. Solve under timed conditions, then check answers against the NCERT textbook and NCERT Solutions.
Other years of Class 10 Science
How to use these papers
- 1Start chapter-wise early in the year — solve only the Science questions from a chapter you have just finished.
- 2Switch to full timed papers 2–3 months before the exam: one complete set in the real time limit, no notes.
- 3Self-mark against the marking scheme, then fix every mistake with our free NCERT solutions.
- 4Re-attempt your weakest chapters until the recurring question types feel routine.
CBSE Class 10 Science 2020 — FAQ
How many CBSE Class 10 Science 2020 question papers are there?
5 sets — CBSE issues the 2020 Science exam in several sets across regions, all on the same syllabus and marking scheme. Each is a free PDF.
Is this the real CBSE Class 10 Science 2020 board paper?
Yes — every set here is an actual 2020 board question paper issued by CBSE. None are sample or mock papers.
How should I use the 2020 Science paper?
Solve a full set in one sitting under the real time limit, then check each answer against the NCERT textbook. Comparing sets shows how CBSE varies the same syllabus across regions.
Which chapters were most tested in Science 2020?
Carbon and its Compounds (10%), Light - Reflection and Refraction (10%), Acids, Bases and Salts (10%), Electricity (10%) led the 2020 Science paper — see the full chapter breakdown above.