FOUNDATIONAL-SCIENCE · 2021
Foundational Science
Official National Center for University Entrance Examinations examination materials and examiner commentary for Foundational Science (2021). Refer to the board portal for the latest published reports.
Cohort performance
Session statistics from official examination reports
No data available in official reports
Key examiner messages
Top priorities from the principal examiner before you revise
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Question difficulty map
How candidates performed on each question in this series
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Assessment objectives
Skill and AO weighting from official examiner commentary
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Method marks watchlist
Where working, steps, or method marks were commonly lost
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Recurring mistakes across years
Themes examiners flag in multiple recent sessions for this subject
Experiments: Confusing the variable changed by the experimenter with the measured outcome. — Label independent and dependent variables be…
Units: Mixing grams and kilograms, minutes and seconds, or milliliters and liters. — Convert to base units before substituting into formu…
Graphs: Describing a trend beyond the measured range. — Do not extrapolate unless the problem explicitly asks and the model supports it.
Chemistry basic: Using particle number and mass interchangeably. — Use amount of substance as the bridge between particles, mass and reac…
Biology basic: Memorizing terms without understanding feedback or ecosystem relationships. — Draw arrows for cause, response and regulation.
Question choice intelligence
Mean scores and popularity for optional questions (HKDSE electives)
No data available in official reports
Level exemplars
What candidate scripts at each grade level looked like
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Grade & admission context
How marks relate to grade thresholds and entry standards
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Deep insights
What top candidates did
Techniques and approaches examiners rewarded in this series
No data available in official reports
Command word playbook
How to match each command word to the expected response style
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Time traps
Sections where candidates spent disproportionate time relative to marks
No data available in official reports
Syllabus traceability
Topics linked to questions and mark weighting in this session
No data available in official reports
MCQ trap analytics
Commonly chosen wrong options from examiner commentary
No data available in official reports
Topic heatmap across years
Mark concentration by topic and exam year for this subject
Mark intensity
Physics Basic: motion, energy, waves and electricity
Chemistry Basic: particles, bonding, reactions and amounts
Biology Basic: cells, genetics, body regulation and ecosystems
Earth Science Basic: Earth, atmosphere, oceans and space
Difficulty trend
How session difficulty has shifted across recent years
Paper comparison
Marks and duration breakdown across papers in this session
No data available in official reports
Marks you can still earn
Where valid approaches outside the mark scheme may still gain credit
No data available in official reports
Practise what examiners flagged
Target weak topics from this report inside the Revui app
No data available in official reports
Self-diagnostic checklist
Key actions before you sit this paper — copy and tick off as you revise
- 1Pitfall
Experiments: Confusing the variable changed by the experimenter with the measured outcome. — Label independent and dependent variables be…
- 2Pitfall
Units: Mixing grams and kilograms, minutes and seconds, or milliliters and liters. — Convert to base units before substituting into formu…
- 3Pitfall
Graphs: Describing a trend beyond the measured range. — Do not extrapolate unless the problem explicitly asks and the model supports it.
- 4Pitfall
Chemistry basic: Using particle number and mass interchangeably. — Use amount of substance as the bridge between particles, mass and reac…
- 5Pitfall
Biology basic: Memorizing terms without understanding feedback or ecosystem relationships. — Draw arrows for cause, response and regulation.
Teacher briefing pack
One-page session summary for tutors and classroom review
2021 2021
Foundational Science
Official National Center for University Entrance Examinations examination materials and examiner commentary for Foundational Science (2021). Refer to the board portal for the latest published reports.
Experiments: Confusing the variable changed by the experimenter with the measured outcome. — Label independent and dependent variables be…
Units: Mixing grams and kilograms, minutes and seconds, or milliliters and liters. — Convert to base units before substituting into formu…
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