Science (Combined) support that helps you work it out
MOE/SEAB Combined Science (5086 / 5087 / 5088 / SEC K326–K328): core Physics, Chemistry and Biology topics for students taking two combined science disciplines.
8 tracked MOE/SEAB skills, from forces, motion and energy to human transport, respiration and ecology. The tutor asks focused questions, you test the next step, and the understanding stays yours.
Beta subject: Science (Combined) uses a domain-specific Socratic rubric and is currently marked Beta while we benchmark its scaffolding across full Sec 3–4 (O-Level / SEC) papers.
What a science (combined) tutor covers
Each skill is tracked separately so strong chapters never mask a shaky prerequisite.
- 1
Forces, motion and energy
Foundation skillInterpret speed-time graphs, resultant force F = ma, work done and conservation of energy.
- 2
Thermal processes and wave properties
Builds on Forces, motion and energyExplain conduction, convection and radiation, and apply v = fλ to waves, light and sound.
- 3
DC circuits and practical electricity
Builds on Forces, motion and energyCalculate current, potential difference, resistance, electrical power and household kWh safety.
- 4
Atomic structure, bonding and stoichiometry
Foundation skillDeduce electronic structures, ionic/covalent bonding, balanced equations and mole ratios.
- 5
Acids, bases, metals and the atmosphere
Builds on Atomic structure, bonding and stoichiometryPredict reactions of acids, bases and metals in the reactivity series, plus air pollutants.
- 6
Fuels, alkanes and alkenes
Builds on Atomic structure, bonding and stoichiometryCompare fractional distillation of petroleum, alkanes and alkenes, and addition polymerisation.
- 7
Cells, movement of substances and enzymes
Foundation skillLink cell organelles to function, osmosis and diffusion, and enzyme activity curves.
- 8
Human transport, respiration and ecology
Builds on Cells, movement of substances and enzymesTrace circulatory and respiratory transport in humans and energy flow through food webs.
How a science (combined) session unfolds
The student starts by asking for the answer—and ends up solving the key step themselves.
- Student
How do I tell whether this compound is ionic or covalent from its melting point and conductivity?
- Tutor
Look at the two observations in your table first. Tell me what happens to its conductivity when it goes from solid to molten or dissolved.
- Student
It doesn’t conduct when solid, but it conducts when molten, and its melting point is 801 °C.
- Tutor
Good. What kind of charged particles have to be free to move for a molten substance to conduct?
- Student
Ions! In the solid they are locked in a giant ionic lattice, and melting frees them to move.
- Tutor
Exactly — and that phrase “mobile ions, not electrons” is what O-Level markers look for. Now link the giant lattice structure to the 801 °C melting point in one sentence.
About this illustrative example
This walkthrough is an illustrative script written to show how the five-level hint progression works in Science (Combined), not a transcript from a real student account.
Have a science (combined) question right now?
Bring your own school worksheet problem or test our interactive whiteboard with zero login required.
How skill progress is recorded
Sessions build a clear skill record for the student and a calm, read-only summary for linked parents.
One bar per skill
Mastery is tracked skill by skill, not as a single subject percentage, so a strong topic cannot hide a weak one.
The hint level counts
Getting something right with one small hint moves the bar more than getting it right after five. The number we show you reflects how much help you needed.
Built from an event log
Every attempt, hint and explanation is recorded as an event, and the bars are calculated from that history. It can be replayed, which means the numbers are reproducible rather than asserted.
A parent sees the same numbers
A linked parent gets the same skill bars, the last judgement and its line of evidence behind each level, the recent session summaries and the flag counts — read-only, and nothing that is not also on your own pages.
8 skill bars, tracked independently
In science (combined), that means 8 separate skill bars — forces, motion and energy, thermal processes and wave properties, dc circuits and practical electricity, and the rest — each updating based on verified problem steps. Linked parents see the same topic bars and session takeaways in read-only mode.
Science (Combined) FAQs
Common questions from students and parents about studying this subject on tutor.ai.
Which Combined Science combinations are supported?
All three O-Level / SEC Science pairings (5086 Physics/Chemistry, 5087 Physics/Biology and 5088 Chemistry/Biology). You pick the skill strand that matches the paper you are revising.
How does Combined Science differ from Pure Science here?
The eight skills focus on the core mechanisms and quantitative steps examined in Syllabuses 5086–5088, including practical planning and tabulated observation rules.
Can I upload a structured worksheet?
Yes — upload the PDF or a photo of your structured questions, and the tutor will question you step by step on the exact data table or graph on the page.
Will it check my chemical equations and units?
Yes. It checks atom conservation, mole ratios and SI unit conversions without writing the finished calculation for you.
More Sec 3–4 (O-Level / SEC) subjects
Switch between subjects at the same school level or open the full catalogue.
Biology
MOE/SEAB Pure Biology (6093 / SEC K325): cell structure, movement of substances, biological molecules and enzymes, human and plant nutrition, transport and respiration, excretion and homeostasis, molecular genetics, inheritance and ecology.
Chemistry
MOE/SEAB Pure Chemistry (6092 / SEC K324): experimental chemistry, atomic structure and bonding, stoichiometry and the mole concept, electrolysis, energetics, rate and redox, acids, bases and qualitative analysis, the Periodic Table, metals and organic chemistry.
Physics
MOE/SEAB Pure Physics (6091 / SEC K323): measurement and vectors, kinematics, dynamics, turning effect of forces and pressure, energy, work and power, thermal physics, general waves, sound, EM spectrum and light, DC circuits, practical electricity and electromagnetism.
Nutrition and Food Science
MOE/SEAB Nutrition and Food Science (6097 / SEC): macronutrients, micronutrients, water and dietary fibre, Singapore HPB My Healthy Plate and diet-related diseases, food science reactions (coagulation, gelatinisation, dextrinisation, caramelisation, emulsification, enzymic browning), methods of cooking, food safety and coursework evaluation (Beta).
Bring your science (combined) question
Free during testing, with no credit card required.