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IGCSE Chemistry practicals you can actually run
Cambridge examines practical skills in Paper 5, the practical test, or Paper 6, the alternative to practical. Both reward the same thing: knowing what the apparatus does, what the observation is, and why. These simulators let you do the experiment as many times as you like before either paper.
Open the digital labTopic by topic
Every lab below runs in the browser, needs no install and works on a phone. None of them replace a real bench - they let you rehearse it, break it safely, and see the numbers behind the observation.
The labs in full
19 experiments matter for this syllabus. Each opens on its own page and is free to use.
Rate of reaction
Acid and metal at five concentrations, timed, with the gas collected.
Open the lab → Class 10-12Concentration and rate
One variable at a time, and the gradient does the talking.
Open the lab → CBSE Class 10Electrolysis of water
Guided steps, ions you can watch move, and the 2:1 gas ratio built in front of you.
Open the lab → IGCSE 0620/0971 · CBSEMolten lead bromide
Melt it, switch on, and watch lead form at one electrode and bromine at the other.
Open the lab → Class 10 · JEEChlor-alkali process
Brine electrolysis in a membrane cell, all three products traced.
Open the lab → IGCSE · Class 10Tests for gases
Six gases against every reagent, then Mystery mode for an unknown.
Open the lab → CBSE XII · IGCSECation and anion tests
Salt analysis at a real reagent shelf, one test at a time.
Open the lab → IGCSE · Class 10Indicators and pH
Five indicators across pH 0 to 14 with their transition ranges.
Open the lab → IGCSE 0620Strong and weak acids
Acid X against acid Y until the difference is obvious.
Open the lab → IGCSE · Class 10Metals with water and steam
Caesium down to calcium in the trough, magnesium to iron on the steam rig.
Open the lab → CBSE Class 10Burning magnesium ribbon
Clean the ribbon, light it, collect the white magnesium oxide ash.
Open the lab → IGCSE · Class 10-12Fractional distillation
A 3D refinery column you can turn, splitting crude oil into its eight fractions.
Open the lab → IGCSE · Class 9-11Balancing equations
A live atom tally and a mass balance that tips until both sides match.
Open the lab → IGCSE · Class 9-11Build an atom
Drag protons, neutrons and electrons in and watch the element, mass number and charge follow.
Open the lab → IGCSE · Class 9-12Rutherford gold foil experiment
Fire alpha particles at gold foil in 3D and count the flashes yourself.
Open the lab → IGCSE 0620/0971 · Physics 0625 · CBSECathode ray experiment
Pump the tube down, switch the EHT on, then bend the beam with plates and coils, or spin a paddle wheel with it.
Open the lab → All levels3D molecular lab
Bond angles, hybridisation, VSEPR shape and polarity for any molecule.
Open the lab → IGCSE · IB · CBSEPeriodic table explorer
Group and period trends element by element, plus a trends quiz.
Open the lab → Class 9 · IGCSEStates of matter
Turn the burner up and watch the particle picture change with it.
Open the lab →Common questions
Which IGCSE paper are practicals examined in?
Cambridge IGCSE Chemistry 0620 assesses practical skills in Paper 5, a timed practical test, or Paper 6, the alternative to practical, which is a written paper about experiments. Your school chooses which one you sit. Both ask you to plan, record observations, handle data and evaluate a method, so the same preparation works for either.
Can a simulator replace real lab time?
No, and it is not meant to. Handling apparatus, judging an end point and working safely are things you learn at a bench. What a simulator gives you is repetition: you can run the rusting investigation twenty times in an afternoon, change one variable at a time, and see the pattern that a single school session rarely makes obvious.
Do I need to install anything?
Nothing. Each lab is a single web page. Open it, and once it has loaded it keeps working even if your connection drops. It runs on a phone, a tablet, a school Chromebook or a desktop.
Is it free?
Yes. Every simulator on the site is free to open and use, with no account required. Paid tuition is separate.
Studying something else?
The same labs, grouped for a different syllabus.