Properties of Gases & Gas Laws
KMT, Boyle's, Charles', Gay-Lussac's, Avogadro's, Ideal Gas Law, Combined Gas Law, Dalton's, and Graham's Law — all with interactive pistons, particles, and graphs.
Simulations
Pistons
Graphs
Calculators
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Gas Laws Kahoot Quiz
30 questions covering every gas law — including real-world applications, calculations, and conceptual understanding. Speed bonus scoring, shuffled answers, full explanations.
30 questions
Timer
Speed bonus
Score tracking
Atomic Structure — Simulations
The nuclear atom, isotopes, and electron configurations — with a Bohr-Rutherford diagram builder, subatomic particle calculator, average atomic mass calculator and a mini mass spectrometer.
Bohr-Rutherford builder
Isotope explorer
Particle calculator
Average atomic mass
Mass spec
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Atomic Structure — Real-World Applications
Radioisotopes in medicine, carbon dating with an interactive half-life explorer, mass spectrometry in forensics and geology, and why every element past atomic number 88 is radioactive.
Medical tracers
Carbon dating
Half-life explorer
Band of stability
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Atomic Structure Kahoot Quiz
15 questions on subatomic particles, atomic and mass number, isotope notation, calculating p/n/e for atoms and ions, electron configurations and average atomic mass. Speed bonus scoring with full explanations.
15 questions
Timer
Speed bonus
Explanations
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Periodic Trends — Simulations
Effective nuclear charge, atomic and ionic radius, ionization energy, electron affinity and electronegativity — with a clickable trend map, a Zeff calculator, a successive-IE grapher and a bond polarity tool.
Trend map
Zeff calculator
Ion size visualiser
Successive IE
Bond polarity
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Periodic Trends — Real-World Applications
Why caesium explodes in water and lithium only fizzes, why fluorine attacks glass but iodine is safe on skin, why water dissolves salt but not oil, and why noble gases glow without ever reacting.
Alkali metals
Halogen reactivity
Water polarity
Noble gases
Batteries
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Periodic Trends Kahoot Quiz
18 questions on the four definitions, calculating Zeff, the across-vs-down master rule, atomic and ionic radius, successive ionization energies, reactivity trends and bond polarity. Speed bonus scoring with full explanations.
18 questions
Timer
Speed bonus
Explanations
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Structures & Physical Properties — Simulations
Ionic, simple covalent, giant/network, graphite and metallic structures — with a rotatable lattice viewer, a conductivity simulator, a melt-vs-dissolve ion animator, an alloy mixer and a structure classifier.
Lattice viewer
Conductivity sim
Melt vs dissolve
Alloy mixer
Classifier
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Structures & Properties — Real-World Applications
Why graphite writes and diamond drills, what alloying does to cutlery and jewellery, why sports drinks and batteries need mobile ions, and why oil refuses to mix with water.
Graphite vs diamond
Alloys
Electrolytes
Glass & silicon
Polarity
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Structures & Properties Kahoot Quiz
15 questions on classifying substances by structure, melting point trends, conductivity by state, why graphite conducts but diamond doesn't, polarity and solubility, and substitutional vs interstitial alloys.
15 questions
Timer
Speed bonus
Explanations
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Atom Sandbox
Drag atoms onto the canvas and watch them react. 15 elements, 17 programmed reactions — ionic, covalent, and polar covalent bonds all shown with electron orbital rings.
15 elements
17 reactions
Orbital rings
Drag & drop
Chemical Reactions
Balancing equations, the five reaction types, predicting products, activity series, and combustion — plus a 25+ question quiz.
Balancing equations
Reaction types
Predicting products
Activity series
Quiz
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Empirical and Molecular Formula, and Hydrates
Percentage composition, empirical & molecular formulas, and hydrates — with step-by-step interactive solvers.
% Composition
Empirical Formula
Molecular Formula
Hydrates
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Quantities in Chemical Reactions
Moles, molar mass, the three mole equations, stoichiometry, limiting reactants, percent yield — plus a 25+ question quiz.
Mole calculations
Stoichiometry
Limiting reactants
Percent yield
Quiz
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