Primary 4 Science exam paper analysis: 2022
PaperLah has 34 Primary 4 Science exam papers from 2022, set by 17 Singapore primary schools, with 1,829 questions worth 2,391 marks. The topics carrying the most marks were Matter (16%), Light (12%) and Heat (12%); together the top 4 topics account for half of all marks. Matter appears in 97% of the papers. Multiple-choice questions make up 52% of marks, and 0.6% of questions are worth 3 marks or more, which usually means showing working. A typical paper has about 54 questions and 70 marks.
These figures describe the school papers in PaperLah's collection, not official MOE or SEAB weightings. They help with planning revision; they can't predict a particular exam.
Compared with all years: Matter took 16% of marks in 2022 (all years: 15%); Light took 12% of marks in 2022 (all years: 13%); Heat took 12% of marks in 2022 (all years: 13%).
Where the marks are
Topics ranked by their share of all marks. The blue ones above the line together make up half.
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| Topic | % of marks | Papers |
|---|---|---|
| Matter | 16.2 | in 33 of 34 papers |
| Light | 12.3 | in 26 of 34 papers |
| Heat | 11.8 | in 22 of 34 papers |
| Life cycles | 10.8 | in 29 of 34 papers |
| Magnets | 9.1 | in 30 of 34 papers |
| Materials | 7.4 | in 31 of 34 papers |
| Classification | 7.2 | in 29 of 34 papers |
| Plant parts and transport | 5.6 | in 28 of 34 papers |
| Digestive system | 5.1 | in 28 of 34 papers |
| Scientific investigation | 3.4 | in 27 of 34 papers |
| Living and non-living things | 2.6 | in 24 of 34 papers |
| Human body systems | 1.8 | in 23 of 34 papers |
| Plant reproduction | 1.8 | in 15 of 34 papers |
| Fungi and bacteria | 1.7 | in 21 of 34 papers |
| Electricity | 1.4 | in 14 of 34 papers |
| Forces | 0.4 | in 4 of 34 papers |
| Reproduction in humans and animals | 0.3 | in 6 of 34 papers |
| Adaptations | 0.3 | in 6 of 34 papers |
| Changes of state and water cycle | 0.2 | in 3 of 34 papers |
| Respiratory and circulatory systems | 0.1 | in 2 of 34 papers |
| Water flow | 0.1 | in 1 of 34 papers |
| Dengue and rainfall | 0.1 | in 1 of 34 papers |
| Environment and ecosystems | 0.1 | in 2 of 34 papers |
| Water levels in connected containers | 0.1 | in 1 of 34 papers |
| Relationship between rainfall and dengue cases | 0 | in 1 of 34 papers |
| Energy | 0 | in 1 of 34 papers |
What a paper is made of
How children answer, as a share of marks.
- Multiple choice 52%
- Open-ended (show working) 26%
- Short answer 12%
- Fill in the blank 4%
- Other 6%
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| Format | % of marks |
|---|---|
| Multiple choice | 52 |
| Open-ended (show working) | 26 |
| Short answer | 11.7 |
| Fill in the blank | 4.2 |
| Word bank | 2.4 |
| Number answer | 1.7 |
| Drawing or labelling | 1.5 |
| Other | 0.5 |
Marks per question
Share of questions worth 1, 2, 3, 4 or 5+ marks. 12% have no marks printed. Higher-mark questions usually need working.
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| Marks | % of questions |
|---|---|
| 1 | 44.5 |
| 2 | 42.6 |
| 3 | 0.5 |
| 4 | 0.1 |
How likely a topic comes up
The share of papers with at least one question on the topic.
Show as table
| Topic | % of papers |
|---|---|
| Matter | 97.1 |
| Materials | 91.2 |
| Magnets | 88.2 |
| Life cycles | 85.3 |
| Classification | 85.3 |
| Plant parts and transport | 82.4 |
| Digestive system | 82.4 |
| Scientific investigation | 79.4 |
| Light | 76.5 |
| Living and non-living things | 70.6 |
| Human body systems | 67.6 |
| Heat | 64.7 |
| Fungi and bacteria | 61.8 |
| Plant reproduction | 44.1 |
| Electricity | 41.2 |
| Adaptations | 17.6 |
| Reproduction in humans and animals | 17.6 |
| Forces | 11.8 |
| Changes of state and water cycle | 8.8 |
| Environment and ecosystems | 5.9 |
| Respiratory and circulatory systems | 5.9 |
| Dengue and rainfall | 2.9 |
| Water flow | 2.9 |
| Relationship between rainfall and dengue cases | 2.9 |
| Water levels in connected containers | 2.9 |
| Energy | 2.9 |
Exam types
Which school exams these papers come from.
Key facts
- 34 papers, 1,829 questions, 2,391 marks, from 17 schools.
- 4 topics carry half of all marks.
- Most-tested topic: Matter, 16% of marks.
- Most common topic across papers: Matter, in 97% of papers.
- 0.6% of questions are worth 3 marks or more.
- Exam types: End-of-Year / SA2, Mid-Year / SA1 and Weighted Assessment / CA.
Questions parents ask
What topics come up most in Primary 4 Science exam papers in 2022?
By share of marks, the most-tested topics were Matter (16%), Light (12%), Heat (12%), Life cycles (11%) and Magnets (9.1%).
How many questions and marks are in a Primary 4 Science paper?
A typical paper in this set has about 54 questions and 70 marks. Papers vary by school and by exam (weighted assessments are shorter than mid-year and end-of-year exams).
Which exams and schools are included?
34 papers from 17 schools, from these exam types: End-of-Year / SA2, Mid-Year / SA1 and Weighted Assessment / CA. The schools are listed further down this page.
Can I download these papers?
No. PaperLah doesn't share the papers as downloads. Children practise them online one question at a time, with instant marking, and parents see which topics need work.
Schools included
ACS (Junior) · ACS (Primary) · Ai Tong · Anglo-Chinese School · CHIJ · CHIJ St Nicholas Girls' · Catholic High · Henry Park · Maha Bodhi · Maris Stella High · Methodist Girls' · Nan Chiau · Nan Hua · Nanyang · Paya Lebar Methodist Girls' · Pei Chun · Pei Hwa · Raffles Girls' · Red Swastika · Rosyth · Rulang · Singapore Chinese Girls' · St Hilda's · St Joseph's · Tao Nan · Temasek
Schools with Primary 4 Science papers in the collection (all years). Papers are past school assessments; PaperLah is not affiliated with MOE, SEAB or the schools.
How this analysis is made
Every question in each paper is tagged with its topic, format and marks as printed. The figures above are counts over those questions: a topic's share of marks, the share of papers that include it, and so on. Topic names come from the papers and their answer keys, so similar topics can appear under slightly different names. Only aggregate figures are shown here; the questions themselves are practised inside PaperLah.
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