Giant Ionic Lattice Simulation — Description The simulation shows a 5×4×4 NaCl lattice of 80 ions rendered in 3D using Three.js. Na⁺ ions appear purple and smaller, Cl⁻ ions appear green and larger, reflecting their real relative ionic radii. Yellow lines represent the electrostatic attraction between each Na⁺ and its six adjacent Cl⁻ neighbours. Students […]
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Metallic bonding simulation What the simulation shows ⚡ Apply Voltage — electrons visibly drift toward the + terminal; sweeping light pulse reinforces directionality; teaches electrical conductivity 🔨 Apply Force — top two ion layers slide smoothly over the bottom two; a slip plane appears; cross-layer bonds disappear, showing no bond breakage; teaches malleability and ductility
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What the simulation does The simulation covers GCSE Chemistry’s reactivity series across two interactive tabs. Reactions tab — A vertical reactivity ladder runs down the left sidebar, colour-coded from red (very reactive: K, Na) through orange, yellow, green, and purple (unreactive: Ag, Au, Pt). Students click any metal to select it, then choose a reagent
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Simulation of Rate of reaction measurement using syringe and inverted cylinder Rate of Reaction Simulation — Description & Class Activity What the Simulation Shows A 3D interactive experiment measuring the volume of CO₂ gas produced when marble chips (calcium carbonate) react with hydrochloric acid: CaCO₃(s) + 2HCl(aq) → CaCl₂(aq) + H₂O(l) + CO₂(g) Students can
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Collision Theory Simulation This is a 2D particle simulation of the reaction A + B → P, modelling the four factors that affect reaction rate through collision theory. Cyan circles (Reactant A) and orange circles (Reactant B) move around a reaction vessel, bouncing off walls and each other. Every time an A particle meets a
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