🧪 Interactive Simulations

Virtual Science Laboratory

Learn every O-Level physics instrument and practise reading them, explore the chemistry store of reagents and apparatus, mix chemicals to see real equations and observations, build circuits, and study the solar system and living cells.

🔭Physics Apparatus
⚡Electric Circuits
🧴Chemistry Store
⚗️Chemical Reactions
🪐Solar System
🧬Biology Models
🔭
Physics Apparatus Room
Every O-Level physics instrument: what it measures, precision, how to use and read it, errors and safety
🎯 Measurement practice
cm
🧴
Chemistry Store
Reagents and chemicals, apparatus, tests for ions and gases, and indicators — O-Level syllabus
Hazard key: ⚠️ Corrosive · ☠️ Toxic · 🔥 Flammable · ⭕ Oxidising · ❗ Irritant/Harmful · 🐟 Environment · ✅ Low hazard
⚡
Electric Circuit Builder
Build and simulate DC circuits — Ohm's Law, series, parallel
Power Sources
🔋Battery (6V)
🔋Battery (9V)
Components
⬜Resistor
💡Light Bulb
⚡Capacitor
🟢LED
Controls
🔛Switch
🔵Ammeter
🟡Voltmeter
Click components to add them to the circuit board
Voltage
6.00
Volts (V)
Current
0.60
Amperes (A)
Resistance
10.0
Ohms (Ω)
Power
3.60
Watts (W)
⚡ Ohm's Law
V = I × R
Voltage (V)6V
Resistance (Ω)10Ω
> Circuit initialised
> Battery: 6V connected
> Resistor: 10Ω added
⚗️
Chemical Reactions Simulator
Mix any two of 60 O-Level chemicals, or heat one — see the equation, observations, products and tests
A
+
B
→
Product
⚗️ Equation
Choose two substances and press React!
Observations, products, the equation and tests will appear here.
📊 Measurements
pH of A—
pH of B—
pH after—
Temperature25 °C
Gas given off—
Precipitate—
Reaction type—
Energy change—
⚠ Safety for these chemicals
🧪 Observation log
> Lab initialised
🔭
Solar System Explorer
Explore planetary orbits, distances and properties
Date: 22 May 2026
Focus: Solar System
Scale: 1AU = 80px
🪐 Planets
☀️ Sun
Type: G-type main-sequence star
Diameter: 1,392,700 km
Mass: 1.989 × 10³⁰ kg
Surface Temp: 5,778 K
Age: 4.6 billion years
🧬
Biology Models & Cell Viewer
12 labelled O-Level diagrams: cells, mitosis, photosynthesis, respiration, DNA, heart, digestion, reflex arc, flower, ecosystem
Parts — tap one to highlight it