Loading page…
Loading blog content…
Loading page…
Loading blog content…
Upper secondary microscope routines, investigative skills, and evaluation prompts for Paper 3.
The Singapore-Cambridge O-Level Biology syllabus (6093, 2026) is the live guide for candidates sitting the examination in 2026, i.e. the current Sec 3 cohort.
It specifies a 1 h 50 min Paper 3 practical worth 40 marks (20 % of the examination) with timed Section A and Section B investigations.
Candidates must plan, execute, and document their work within the script—no lab notebooks are permitted.
Paper 3 assesses the following:
Paper 3 covers microscope work, food and enzyme tests, physiological investigations, field observations, and quantitative measurements using standard laboratory apparatus.
| Paper | Duration | Marks / weighting | What to expect |
|---|---|---|---|
| Paper 3 Practical | 1 h 50 min | 40 marks (20% of O-Level grade) | Section A and B investigations testing Planning, MMO, PDO, ACE across microscope, enzyme, and field tasks. |
Our walkthroughs convert those expectations into pre-lab routines, observation tables, and evaluation prompts so you can rehearse Paper 3 techniques, practise clean biological drawings, and flag issues for tutors early.
Paper 3 lasts 1 h 50 min, carries 40 marks, and contributes 20% of the Biology grade. Two timed sections test Planning, MMO, PDO, and ACE skill strands.
Yes. Expect MMO checkpoints on focusing, magnification, and annotated biological drawings that follow exam rules on proportions and labels.
Planning contributes about 15% of the Paper 3 marks. You will frame hypotheses, controls, and data treatment before running the investigation.
Use our observation templates, virtual microscope assets, and past-data exercises to rehearse PDO and ACE responses between school lab sessions.