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O-Level Science Coverage Checklists

Tick each topic only when you can define key terms, answer a question on it without notes, and explain a common exam trap. Ticks save to your browser.

Rule: Do not tick a topic because you have read it. Tick it only when you can attempt an exam question cold and score marks.

How to use the O-Level Science checklist

This checklist covers every topic in the O-Level Biology (6093), Chemistry (6092) and Physics (6091) syllabuses. Use it as your revision roadmap — only tick a topic when you can answer a past-year exam question on it without looking at your notes.

Biology 6093
Cell biology · Nutrition · Transport · Respiration · Excretion · Coordination · Reproduction · Genetics · Ecology
Chemistry 6092
Atomic structure · Bonding · Stoichiometry · Acids & salts · Metals · Organic chemistry · Rate of reaction · Electrolysis
Physics 6091
Measurement · Kinematics · Forces · Pressure · Energy · Thermal physics · Waves · Light · Electricity · Magnetism · Radioactivity

The four-step revision rule

  1. Read the notes on ScienceStar for the topic.
  2. Close all notes and attempt at least one past-year structured question from memory.
  3. Check your answer against the mark scheme and note any mark-losing errors.
  4. Tick the topic only when you can define all key terms and answer a question cold.
⚡ Physics (6091)
0 / 11 topics
🧪 Chemistry (6092)
0 / 11 topics
🧬 Biology (6093)
0 / 13 topics
📋 Combined Science
0 / 8 skills
Physics 6091

Only tick when you can attempt a question without notes.

🧪 Chemistry 6092

Only tick when you can attempt a question without notes.

🧬 Biology 6093

Only tick when you can attempt a question without notes.

📋 Combined Science Skills

Only tick when you can demonstrate the skill in a real question.

Traffic-light system for honest revision

Green — Tick it

You can define key terms, answer an exam question, and explain the common trap — all without notes.

Amber — Revisit

You understand the topic from notes but still lose marks in questions. Redo more practice before ticking.

Red — Prioritise

You cannot explain the concept or you avoid the topic entirely. Tackle these first before doing timed papers.

How to use these checklists effectively

These checklists cover every examinable topic in the SEAB 2026 syllabuses for Physics (6091), Chemistry (6092), and Biology (6093). They are designed as a diagnostic and tracking tool — not as a passive reading list.

1
Be honest: tick a topic only when you can define its key terms from memory, answer an exam-style question on it without notes, and explain the most common exam trap. If you hesitate, leave it unticked.
2
Use the tick as a goal, not a starting point: untick topics as you review them. A cleared checklist at the end of your revision means you are genuinely ready — not just that you have read the notes once.
3
Connect to topic pages: each checklist item links directly to the corresponding ScienceStar topic page, which has full notes, worked examples, Must-Know boxes, and 8 quiz questions. Use the quiz to test readiness before ticking.
4
Re-check regularly: memory fades. Come back to your checked topics every two to three weeks and verify you can still recall them. If not, untick and re-revise.

What the SEAB O-Level syllabuses cover

Physics 6091 — 12 topics

Measurement, Kinematics, Forces, Mass/Weight/Density, Moments and Pressure, Energy, Thermal Physics, Waves, Electricity, Magnetism, Radioactivity. Heavy emphasis on calculation, graph analysis, and explaining physical phenomena.

🧪

Chemistry 6092 — 11 topics

Atomic Structure, Formulae and Equations, Bonding, Acids/Bases/Salts, Mole Calculations, Energy Changes, Rate of Reaction, Metals and Reactivity, Electrolysis and Redox, Organic Chemistry, Qualitative Analysis. Mole calculations and organic chemistry are the highest-mark topics.

🧬

Biology 6093 — 11 topics

Cell Biology, Biological Molecules, Enzymes, Plant Nutrition, Transport in Plants, Transport in Humans, Respiration and Gas Exchange, Homeostasis, Reproduction, Genetics, Ecology and Health. Precision of language is critical — vague answers lose marks even when the idea is correct.