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Primary 5 Science exam paper analysis: 2013

PaperLah has 26 Primary 5 Science exam papers from 2013, set by 11 Singapore primary schools, with 1,579 questions worth 2,169 marks. The topics carrying the most marks were Plant reproduction (11%), Electricity (9.2%) and Heat (7.6%); together the top 7 topics account for half of all marks. Plant parts and transport appears in 92% of the papers. Multiple-choice questions make up 55% of marks, and 0.4% of questions are worth 3 marks or more, which usually means showing working. A typical paper has about 61 questions and 83 marks.

Based on 26 papers from 11 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: Plant reproduction took 11% of marks in 2013 (all years: 9.9%); Electricity took 9.2% of marks in 2013 (all years: 11%); Heat took 7.6% of marks in 2013 (all years: 8.5%).

26papers from 11 schools
61questions in a typical paper
83marks in a typical paper
7topics 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.

Plant reproductionin 23 of 26 papers10.7%
Electricityin 17 of 26 papers9.2%
Heatin 22 of 26 papers7.6%
Changes of state and water cyclein 19 of 26 papers7.1%
Plant parts and transportin 24 of 26 papers6.3%
Cellsin 18 of 26 papers6%
Matterin 19 of 26 papers5.9%
Above this line: 7 topics carry half of all marks
Respiratory and circulatory systemsin 17 of 26 papers5.8%
Lightin 18 of 26 papers4.4%
Reproduction in humans and animalsin 20 of 26 papers4.3%
Show as table
Topic% of marksPapers
Plant reproduction10.7in 23 of 26 papers
Electricity9.2in 17 of 26 papers
Heat7.6in 22 of 26 papers
Changes of state and water cycle7.1in 19 of 26 papers
Plant parts and transport6.3in 24 of 26 papers
Cells6in 18 of 26 papers
Matter5.9in 19 of 26 papers
Respiratory and circulatory systems5.8in 17 of 26 papers
Light4.4in 18 of 26 papers
Reproduction in humans and animals4.3in 20 of 26 papers
Scientific investigation4in 21 of 26 papers
Magnets4in 18 of 26 papers
Classification3.9in 24 of 26 papers
Life cycles3.6in 21 of 26 papers
Environment and ecosystems2.6in 15 of 26 papers
Materials2.6in 17 of 26 papers
Digestive system2.2in 17 of 26 papers
Forces1.8in 4 of 26 papers
Human body systems1.8in 13 of 26 papers
Photosynthesis1.4in 9 of 26 papers
Food chains and webs1.4in 3 of 26 papers
Fungi and bacteria0.9in 10 of 26 papers
Living and non-living things0.9in 9 of 26 papers
Adaptations0.6in 6 of 26 papers
Energy0.2in 1 of 26 papers
Disease and medication0.1in 1 of 26 papers
Reliability of results0.1in 2 of 26 papers
Rate of breakdown0in 1 of 26 papers
Clarity of water0in 1 of 26 papers
Viscosity0in 1 of 26 papers

What a paper is made of

How children answer, as a share of marks.

  • Multiple choice 55%
  • Open-ended (show working) 28%
  • Short answer 10%
  • Drawing or labelling 3%
  • Other 3%
Show as table
Format% of marks
Multiple choice55
Open-ended (show working)28.4
Short answer10.1
Drawing or labelling3.4
Fill in the blank1.8
Number answer0.6
Word bank0.4
Other0.4

Marks per question

Share of questions worth 1, 2, 3, 4 or 5+ marks. 8% have no marks printed. Higher-mark questions usually need working.

1: 45% of questions45%12: 47% of questions47%23: 0% of questions0%3
Show as table
Marks% of questions
145.2
246.6
30.4

How likely a topic comes up

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

Plant parts and transport92.3%
Classification92.3%
Plant reproduction88.5%
Heat84.6%
Scientific investigation80.8%
Life cycles80.8%
Reproduction in humans and animals76.9%
Changes of state and water cycle73.1%
Matter73.1%
Cells69.2%
Show as table
Topic% of papers
Plant parts and transport92.3
Classification92.3
Plant reproduction88.5
Heat84.6
Scientific investigation80.8
Life cycles80.8
Reproduction in humans and animals76.9
Changes of state and water cycle73.1
Matter73.1
Cells69.2
Light69.2
Magnets69.2
Electricity65.4
Respiratory and circulatory systems65.4
Materials65.4
Digestive system65.4
Environment and ecosystems57.7
Human body systems50
Fungi and bacteria38.5
Photosynthesis34.6
Living and non-living things34.6
Adaptations23.1
Forces15.4
Food chains and webs11.5
Reliability of results7.7
Disease and medication3.8
Energy3.8
Rate of breakdown3.8
Clarity of water3.8
Viscosity3.8

Exam types

Which school exams these papers come from.

Mid-Year / SA111 papers42.3%
End-of-Year / SA210 papers38.5%
Weighted Assessment / CA5 papers19.2%

Key facts

  • 26 papers, 1,579 questions, 2,169 marks, from 11 schools.
  • 7 topics carry half of all marks.
  • Most-tested topic: Plant reproduction, 11% of marks.
  • Most common topic across papers: Plant parts and transport, in 92% of papers.
  • 0.4% of questions are worth 3 marks or more.
  • Exam types: Mid-Year / SA1, End-of-Year / SA2 and Weighted Assessment / CA.

Questions parents ask

What topics come up most in Primary 5 Science exam papers in 2013?

By share of marks, the most-tested topics were Plant reproduction (11%), Electricity (9.2%), Heat (7.6%), Changes of state and water cycle (7.1%) and Plant parts and transport (6.3%).

How many questions and marks are in a Primary 5 Science paper?

A typical paper in this set has about 61 questions and 83 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?

26 papers from 11 schools, from these exam types: Mid-Year / SA1, End-of-Year / SA2 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 Hua · Nanyang · Pei Chun · Pei Hwa · Raffles Girls' · Red Swastika · Rosyth · Rulang · Singapore Chinese Girls' · St Hilda's · Tao Nan

Schools with Primary 5 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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