Looking for a way to bring science to life for your IGCSE students? SciSim.co.uk offers a growing library of 18 free, interactive simulations covering Physics, Chemistry, and Biology — all designed specifically for IGCSE Science revision.
What Is SciSim?
SciSim.co.uk is a completely free online platform that provides interactive science simulations aligned to the IGCSE curriculum. Students can explore concepts through hands-on virtual experiments — adjusting variables, observing outcomes, and building deeper understanding of key topics across all three sciences.
Available Simulations

The platform currently features 18 simulations across three subjects:
Physics
Electrical Circuits, Gas Laws, Momentum & Collisions, Radioactive Decay, Refraction of Light, and Wave Properties. Students can build series and parallel circuits, explore Boyle’s and Charles’s Law, crash trolleys to observe conservation of momentum, and much more.
Chemistry
Atomic Structure, Chromatography, Electrolysis, Energy Profiles, Reaction Rates, and Titration. From building atoms and exploring electron configurations to performing virtual acid-base titrations, these simulations cover core practical skills.
Biology
Diffusion, Enzyme Kinetics, Heart & Circulation, Mendel’s Genetics, Osmosis, and Photosynthesis. Students can investigate enzyme activity, perform monohybrid crosses with Punnett squares, and run the classic pondweed experiment.
Why Use SciSim in Your Teaching?
- 100% Free — No login, no subscription, no hidden costs. Just open the browser and go.
- IGCSE-Aligned — Every simulation targets specific IGCSE specification content, making it directly relevant for revision and lesson support.
- Interactive and Engaging — Students don’t just watch — they adjust variables, take measurements, and see real-time results, reinforcing practical skills even without a lab.
- Multi-Language Support — Available in 10 languages including English, Spanish, French, Arabic, Chinese, and Hindi — ideal for international schools.
- Works on Any Device — Browser-based, so it runs on laptops, tablets, and school computers without any installation.
How to Use It
Simply visit scisim.co.uk and browse the simulation library. You can filter by subject (Physics, Chemistry, or Biology) or search for a specific topic. Each simulation includes interactive controls and real-time data displays so students can experiment and learn at their own pace.
Whether you’re looking for a starter activity, a revision tool, or a way to demonstrate practicals when lab access is limited, SciSim is a valuable addition to any science teacher’s toolkit.
Visit SciSim.co.uk today and explore the full simulation library.
Originally published at scisim.co.uk.
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