# CBSE Class 10 Science Question Paper 2018 & Marking Scheme

> Official CBSE Class 10 Science 2018 question paper (Q.P. code 31/1) and marking scheme as PDFs: 80 marks, 3 hours, 27 questions.

Source: https://previousyearquestions.app/cbse-class-10/2018/science/

The CBSE Class 10 Science 2018 board paper (Q.P. code 31/1) is a 3-hour, 80-mark paper with 27 questions on 12 printed pages. Download the official question paper and CBSE’s marking scheme above.

## Paper at a glance

| | |
| --- | --- |
| Subject | Science |
| Q.P. code | 31/1 (Set 1) |
| Time allowed | 3 hours |
| Maximum marks | 80 |
| Number of questions | 27 |
| Printed pages | 12 |
| Marking scheme | Official CBSE marking scheme, hosted on this page |

## CBSE Class 10 Science across years

Compared with 2017: maximum marks 90 → 80, same time allowed (3 hours), questions 36 → 27. Each row links that year’s paper and marking scheme. There was no board exam in 2021, and 2022 was the shorter Term 2 paper.

| Year | Time | Max marks | Questions | Q.P. code |
| --- | --- | --- | --- | --- |
| [2026](/cbse-class-10/2026/science/) | 3 hours | 80 | 39 | 31/1/1 |
| [2025](/cbse-class-10/2025/science/) | 3 hours | 80 | 39 | 31/1/1 |
| [2024](/cbse-class-10/2024/science/) | 3 hours | 80 | 39 | 31/1/1 |
| [2023](/cbse-class-10/2023/science/) | 3 hours | 80 | 39 | 31/1/1 |
| [2022](/cbse-class-10/2022/science/) | 2 hours | 40 | 15 | 31/1/1 |
| [2020](/cbse-class-10/2020/science/) | 3 hours | — | 30 | 31/1/1 |
| [2019](/cbse-class-10/2019/science/) | 3 hours | 80 | 27 | 31/1/1 |
| **2018** | 3 hours | 80 | 27 | 31/1 |
| [2017](/cbse-class-10/2017/science/) | 3 hours | 90 | 36 | 31/1 |
| [2016](/cbse-class-10/2016/science/) | 3 hours | 90 | 36 | 31/1 |

## Marking your attempt

- Physics, Chemistry and Biology questions are mixed; tag every lost mark by discipline before you revise.
- The scheme lists the keywords and labelled diagrams that earn marks. Copy the wording you missed.
- Balanced equations, units and labels are marked separately; see how often you drop them.
- Sit the paper in 3 hours without breaks, then mark it with the scheme the same day.

## Other CBSE Class 10 2018 subjects

- [CBSE Class 10 Mathematics 2018](/cbse-class-10/2018/mathematics/)
- [CBSE Class 10 Social Science 2018](/cbse-class-10/2018/social-science/)
- [CBSE Class 10 English Language & Literature 2018](/cbse-class-10/2018/english-language-literature/)
- [CBSE Class 10 Hindi Course A 2018](/cbse-class-10/2018/hindi-course-a/)
- [CBSE Class 10 Hindi Course B 2018](/cbse-class-10/2018/hindi-course-b/)
- [All CBSE Class 10 2018 papers](/cbse-class-10/2018/)

## FAQ

### How many questions are in the CBSE Class 10 Science 2018 question paper?
The CBSE Class 10 Science 2018 paper (code 31/1) has 27 questions for 80 marks in 3 hours.

### Is there an official marking scheme for CBSE Class 10 Science 2018?
Yes. CBSE published a marking scheme for this paper, and it is hosted on this page next to the question paper.

### Which set of the CBSE Class 10 Science 2018 paper is this?
Set 1, Q.P. code 31/1. Other sets use the same pattern with different questions.

### Where can I find CBSE Class 10 Science papers from other years?
The year-by-year table on this page links every CBSE Class 10 Science paper hosted on this site, 2016 to 2026.