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Primary 3 Science exam paper analysis: 2024

PaperLah has 35 Primary 3 Science exam papers from 2024, set by 16 Singapore primary schools, with 1,117 questions worth 1,508 marks. The topics carrying the most marks were Classification (23%), Materials (20%) and Magnets (14%); together the top 3 topics account for half of all marks. Classification appears in 89% of the papers. Multiple-choice questions make up 56% of marks, and 0% of questions are worth 3 marks or more, which usually means showing working. A typical paper has about 32 questions and 43 marks.

Based on 35 papers from 16 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 23% of marks in 2024 (all years: 27%); Materials took 20% of marks in 2024 (all years: 17%); Magnets took 14% of marks in 2024 (all years: 11%).

35papers from 16 schools
32questions in a typical paper
43marks 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 31 of 35 papers23%
Materialsin 25 of 35 papers19.8%
Magnetsin 16 of 35 papers13.9%
Above this line: 3 topics carry half of all marks
Life cyclesin 17 of 35 papers12.5%
Living and non-living thingsin 29 of 35 papers8.6%
Fungi and bacteriain 22 of 35 papers5.8%
Plant parts and transportin 20 of 35 papers4.2%
Scientific investigationin 15 of 35 papers3.4%
Digestive systemin 5 of 35 papers2.5%
Plant reproductionin 11 of 35 papers1.8%
Show as table
Topic% of marksPapers
Classification23in 31 of 35 papers
Materials19.8in 25 of 35 papers
Magnets13.9in 16 of 35 papers
Life cycles12.5in 17 of 35 papers
Living and non-living things8.6in 29 of 35 papers
Fungi and bacteria5.8in 22 of 35 papers
Plant parts and transport4.2in 20 of 35 papers
Scientific investigation3.4in 15 of 35 papers
Digestive system2.5in 5 of 35 papers
Plant reproduction1.8in 11 of 35 papers
Electricity1.5in 9 of 35 papers
Human body systems0.9in 5 of 35 papers
Reproduction in humans and animals0.5in 7 of 35 papers
Adaptations0.5in 4 of 35 papers
Light0.3in 3 of 35 papers
Environment and ecosystems0.2in 3 of 35 papers
Scientific equipment0.1in 1 of 35 papers
Animal physical characteristics0.1in 1 of 35 papers
Disease prevention0.1in 1 of 35 papers
Changes of state and water cycle0.1in 1 of 35 papers
Respiratory and circulatory systems0.1in 1 of 35 papers
Mosquitoes and disease prevention0.1in 1 of 35 papers

What a paper is made of

How children answer, as a share of marks.

  • Multiple choice 56%
  • Open-ended (show working) 20%
  • Short answer 16%
  • Fill in the blank 3%
  • Other 5%
Show as table
Format% of marks
Multiple choice56.4
Open-ended (show working)19.9
Short answer16.5
Fill in the blank2.7
Word bank1.8
Number answer1
Drawing or labelling0.9
Other0.9

Marks per question

Share of questions worth 1, 2, 3, 4 or 5+ marks. 6% have no marks printed. Higher-mark questions usually need working.

1: 51% of questions51%12: 43% of questions43%2
Show as table
Marks% of questions
150.9
243.2

How likely a topic comes up

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

Classification88.6%
Living and non-living things82.9%
Materials71.4%
Fungi and bacteria62.9%
Plant parts and transport57.1%
Life cycles48.6%
Magnets45.7%
Scientific investigation42.9%
Plant reproduction31.4%
Electricity25.7%
Show as table
Topic% of papers
Classification88.6
Living and non-living things82.9
Materials71.4
Fungi and bacteria62.9
Plant parts and transport57.1
Life cycles48.6
Magnets45.7
Scientific investigation42.9
Plant reproduction31.4
Electricity25.7
Reproduction in humans and animals20
Digestive system14.3
Human body systems14.3
Adaptations11.4
Light8.6
Environment and ecosystems8.6
Disease prevention2.9
Changes of state and water cycle2.9
Respiratory and circulatory systems2.9
Scientific equipment2.9
Animal physical characteristics2.9
Mosquitoes and disease prevention2.9

Exam types

Which school exams these papers come from.

End-of-Year / SA214 papers40%
Quiz / Review / Test11 papers31.4%
Weighted Assessment / CA8 papers22.9%
Practice paper2 papers5.7%

Key facts

  • 35 papers, 1,117 questions, 1,508 marks, from 16 schools.
  • 3 topics carry half of all marks.
  • Most-tested topic: Classification, 23% of marks.
  • Most common topic across papers: Classification, in 89% of papers.
  • Exam types: End-of-Year / SA2, Quiz / Review / Test, Weighted Assessment / CA and Practice paper.

Questions parents ask

What topics come up most in Primary 3 Science exam papers in 2024?

By share of marks, the most-tested topics were Classification (23%), Materials (20%), Magnets (14%), Life cycles (13%) and Living and non-living things (8.6%).

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

A typical paper in this set has about 32 questions and 43 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?

35 papers from 16 schools, from these exam types: End-of-Year / SA2, Quiz / Review / Test, Weighted Assessment / CA and Practice paper. 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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