Chemistry
Matter, reactions, solutions and electrochemistry
Primary school1/7
Coming soonDissolving
Stir sugar and sand into water and see what disappears
Coming soonSeparating Mixtures
Use a sieve, a magnet and a filter to sort a mixture
Coming soonProperties of Materials
Test materials for hardness, flexibility and waterproofing
Coming soonReversible and Irreversible Changes
Compare melting chocolate with baking a cake
Coming soonEvaporation
Watch puddles dry faster in sun and wind
Coming soonFizzing Reactions
Mix vinegar and baking soda and catch the gas in a balloon
Middle school6/28
FreeMeasuring pH
Test everyday liquids with indicators and a pH meter
Solubility Curves
Change temperature and solute and observe dissolving
Electrolysis of Water
Watch electrode bubbles and the gas volume ratio
Paper Chromatography
Separate ink dyes on filter paper
FreeFlame Tests
Hold metal salts in a flame and compare the colors
FreeBalancing Chemical Equations
Adjust coefficients until the atoms match
Coming soonLab Equipment
Drag test tubes, beakers and burners into place
Coming soonPreparing and Collecting Oxygen
Choose reagents, apparatus and collection method
Coming soonPreparing Carbon Dioxide
React limestone with dilute hydrochloric acid
Coming soonOxygen and Combustion
Change the oxygen concentration and observe burning
Coming soonMetal Reactivity Series
React metals with acids and salt solutions
Coming soonAcid-Base Indicators
Add litmus or phenolphthalein and observe the color
Coming soonNeutralization
Add acid to base and watch temperature and pH
Coming soonCrystallization and Evaporation
Model cooling and evaporative crystallization
Coming soonConservation of Mass
Compare total mass before and after a reaction
Coming soonParticle Motion
Adjust temperature and watch particles move
Coming soonFiltration and Separation
Choose apparatus to separate mixtures
Coming soonRusting of Iron
Change water and oxygen conditions
Coming soonPreparing Hydrogen
React zinc with dilute acid and test the gas
Coming soonWater Purification
Settle, filter, adsorb and disinfect water
Coming soonDistillation
Separate liquids by boiling point
Coming soonMoles and Avogadro's Number
Convert between mass, moles and particles
Coming soonPreparing Solutions
Dissolve and dilute to a target concentration
Coming soonAllotropes of Carbon
Compare diamond, graphite and fullerene
Coming soonReactions of Acids
React acids with metals, oxides and carbonates
Coming soonFuels and Combustion
Compare complete and incomplete burning
Coming soonExtracting Iron
Reduce iron ore in a blast furnace
Coming soonExothermic and Endothermic Reactions
Mix reactants in a cup and track the temperature change
High school9/41
Electron Configuration
Fill energy levels and orbitals
FreeMolecular Geometry in 3D
Rotate molecules and read their bond angles
Reaction Rate
Change concentration, temperature and catalyst
Chemical Equilibrium Shifts
Adjust temperature, pressure and concentration
FreeAcid-Base Titration
Control the burette and plot the titration curve
Galvanic Cell
Pair electrodes and electrolytes and read the voltage
Buffer Solutions
Add acid or base and watch the pH hold steady
Gas Diffusion
Release ammonia and hydrogen chloride and find where they meet
Limiting Reactant and Yield
Combine reactants and find which one runs out first
Coming soonAtomic Structure
Adjust protons, neutrons and electrons
Coming soonChemical Bonding
Form ionic and covalent bonds
Coming soonWeak Electrolyte Ionization
Change concentration and observe the ionization equilibrium
Coming soonSalt Hydrolysis
Change the salt and its concentration and observe pH
Coming soonPrecipitation-Dissolution Equilibrium
Model ion concentrations and precipitate formation
Coming soonElectrolytic Cell
Change electrodes, electrolyte and voltage
Coming soonElectrochemical Corrosion
Model corrosion in different environments
Coming soonOrganic Molecule Structures
Build carbon chains, functional groups and isomers
Coming soonReaction Heat and Enthalpy
Draw energy diagrams for exothermic and endothermic reactions
Coming soonPeriodic Table Trends
Map atomic radius, ionization energy and electronegativity
Coming soonIsotopes and Relative Atomic Mass
Mix isotopes and compute the average mass
Coming soonIntermolecular Forces
Compare boiling points and hydrogen bonding
Coming soonCrystal Structures
Rotate ionic, metallic and molecular lattices
Coming soonRedox Reactions
Track electron transfer and oxidation states
Coming soonActivation Energy and Catalysts
Lower the energy barrier with a catalyst
Coming soonRate Laws and Reaction Order
Change concentrations and fit the rate law
Coming soonHess's Law
Combine reaction steps to find the overall enthalpy
Coming soonAmmonia Synthesis
Tune temperature and pressure for yield and rate
Coming soonIdentifying Ions
Run precipitate and gas tests on unknown solutions
Coming soonElectrolysis of Brine
Produce chlorine, hydrogen and sodium hydroxide
Coming soonElectroplating
Coat a metal object with copper
Coming soonHydrogen Fuel Cell
Turn hydrogen and oxygen into electricity
Coming soonAlkene Addition Reactions
Decolorize bromine water with ethene
Coming soonOxidation of Alcohols
Oxidize ethanol to an aldehyde and an acid
Coming soonEsterification
Combine an acid and an alcohol and shift the equilibrium
Coming soonPolymerization
Link monomers into polymer chains
Coming soonAcid Rain
Trace sulfur and nitrogen oxides into rainwater
Coming soonEmpirical Formula from Mass Data
Burn magnesium and work out the formula of the product
Coming soonPhase Diagrams
Move through pressure and temperature to change state
Coming soonBoiling Point Elevation and Freezing Point Depression
Dissolve a solute and watch the boiling and freezing points shift
Coming soonSpectrophotometry and Beer's Law
Measure absorbance and find an unknown concentration
Coming soonIsomers and Chirality
Build mirror-image molecules and compare their structures
University1/7
Coming soonMolecular Orbital Diagrams
Fill bonding and antibonding orbitals and find the bond order
Coming soonConsecutive Reactions
Follow A to B to C and find when the intermediate peaks
Coming soonGibbs Free Energy and Spontaneity
Change the enthalpy, entropy and temperature and predict spontaneity
Coming soonPolyprotic Acid Titration
Titrate phosphoric acid and find each equivalence point
Coming soonCrystal Field Splitting
Split the d orbitals and predict the color of complexes
Coming soonRaoult's Law and Vapor Pressure
Mix two liquids and draw the vapor pressure diagram