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Primary 3 Science exam paper analysis: 2022

PaperLah has 30 Primary 3 Science exam papers from 2022, set by 14 Singapore primary schools, with 1,066 questions worth 1,445 marks. The topics carrying the most marks were Classification (24%), Materials (18%) and Magnets (15%); together the top 3 topics account for half of all marks. Classification appears in 93% of the papers. Multiple-choice questions make up 55% of marks, and 1.2% of questions are worth 3 marks or more, which usually means showing working. A typical paper has about 36 questions and 48 marks.

Based on 30 papers from 14 schools · Updated 2026-10-13

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: Classification took 24% of marks in 2022 (all years: 27%); Materials took 18% of marks in 2022 (all years: 17%); Magnets took 15% of marks in 2022 (all years: 11%).

30papers from 14 schools
36questions in a typical paper
48marks in a typical paper
3topics carry half of all marks

Where the marks are

Topics ranked by their share of all marks. The blue ones above the line together make up half.

Classificationin 28 of 30 papers23.9%
Materialsin 24 of 30 papers17.5%
Magnetsin 15 of 30 papers15%
Above this line: 3 topics carry half of all marks
Plant parts and transportin 20 of 30 papers8.6%
Living and non-living thingsin 24 of 30 papers7.9%
Digestive systemin 14 of 30 papers5.7%
Fungi and bacteriain 16 of 30 papers5.5%
Human body systemsin 17 of 30 papers5%
Life cyclesin 11 of 30 papers3.9%
Scientific investigationin 9 of 30 papers1.3%
Show as table
Topic% of marksPapers
Classification23.9in 28 of 30 papers
Materials17.5in 24 of 30 papers
Magnets15in 15 of 30 papers
Plant parts and transport8.6in 20 of 30 papers
Living and non-living things7.9in 24 of 30 papers
Digestive system5.7in 14 of 30 papers
Fungi and bacteria5.5in 16 of 30 papers
Human body systems5in 17 of 30 papers
Life cycles3.9in 11 of 30 papers
Scientific investigation1.3in 9 of 30 papers
Electricity1.3in 7 of 30 papers
Reproduction in humans and animals1.1in 10 of 30 papers
Plant reproduction1in 7 of 30 papers
Adaptations0.8in 5 of 30 papers
Respiratory and circulatory systems0.6in 4 of 30 papers
Matter0.3in 2 of 30 papers
Light0.1in 1 of 30 papers
Animal physical characteristics0.1in 1 of 30 papers
Heat0.1in 1 of 30 papers
Health and hygiene0.1in 1 of 30 papers
Photosynthesis0.1in 1 of 30 papers

What a paper is made of

How children answer, as a share of marks.

  • Multiple choice 55%
  • Open-ended (show working) 21%
  • Short answer 16%
  • Fill in the blank 3%
  • Other 5%
Show as table
Format% of marks
Multiple choice55.2
Open-ended (show working)21
Short answer15.8
Fill in the blank3.4
Word bank2.3
Drawing or labelling1.2
Other0.8
Number answer0.3
Cloze passage0.1

Marks per question

Share of questions worth 1, 2, 3, 4 or 5+ marks. 4% have no marks printed. Higher-mark questions usually need working.

1: 54% of questions54%12: 40% of questions40%23: 0% of questions0%34: 1% of questions1%4
Show as table
Marks% of questions
154.3
240.2
30.3
40.9

How likely a topic comes up

The share of papers with at least one question on the topic.

Classification93.3%
Materials80%
Living and non-living things80%
Plant parts and transport66.7%
Human body systems56.7%
Fungi and bacteria53.3%
Magnets50%
Digestive system46.7%
Life cycles36.7%
Reproduction in humans and animals33.3%
Show as table
Topic% of papers
Classification93.3
Materials80
Living and non-living things80
Plant parts and transport66.7
Human body systems56.7
Fungi and bacteria53.3
Magnets50
Digestive system46.7
Life cycles36.7
Reproduction in humans and animals33.3
Scientific investigation30
Electricity23.3
Plant reproduction23.3
Adaptations16.7
Respiratory and circulatory systems13.3
Matter6.7
Light3.3
Animal physical characteristics3.3
Heat3.3
Photosynthesis3.3
Health and hygiene3.3

Exam types

Which school exams these papers come from.

End-of-Year / SA213 papers43.3%
Weighted Assessment / CA13 papers43.3%
Mid-Year / SA14 papers13.3%

Key facts

  • 30 papers, 1,066 questions, 1,445 marks, from 14 schools.
  • 3 topics carry half of all marks.
  • Most-tested topic: Classification, 24% of marks.
  • Most common topic across papers: Classification, in 93% of papers.
  • 1.2% of questions are worth 3 marks or more.
  • Exam types: End-of-Year / SA2, Weighted Assessment / CA and Mid-Year / SA1.

Questions parents ask

What topics come up most in Primary 3 Science exam papers in 2022?

By share of marks, the most-tested topics were Classification (24%), Materials (18%), Magnets (15%), Plant parts and transport (8.6%) and Living and non-living things (7.9%).

How many questions and marks are in a Primary 3 Science paper?

A typical paper in this set has about 36 questions and 48 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?

30 papers from 14 schools, from these exam types: End-of-Year / SA2, Weighted Assessment / CA and Mid-Year / SA1. 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 Hua · Nanyang · Northland · Paya Lebar Methodist Girls' · Pei Chun · Pei Hwa · Raffles Girls' · Red Swastika · River Valley · Rosyth · Rulang · Singapore Chinese Girls' · St Hilda's · Tao Nan · Temasek · Yang Zheng

Schools with Primary 3 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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