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Science Games
Eleven hands-on science games with levels for every grade, a task list, and sound effects. Created by Jacob Lipsky.
Chemistry
Dimensional analysis, density, the periodic table and its trends, flame tests, bonding, molecular shapes, intermolecular forces, balancing equations, the mole, percent composition and empirical formulas, stoichiometry, gas laws, and acids and bases.
Conversion Lab
Build chains of conversion-factor tiles and watch the units cross out as they cancel. Twenty problems, from feet to inches up to square and cubic meters, highway speeds, gas money, a medicine dose, and grams to molecules.
Density Lab
A virtual lab bench. Weigh gold, silver, and copper, measure their volume by water displacement, and calculate density. Then identify mystery metals, test what floats, and find out whether the king's crown is really pure gold.
Element Explorer
An interactive periodic table. Click any element to see its atomic number, atomic mass, group, electron configuration, valence electrons, a shell diagram, and a fun fact. Color the table by element type, state, valence electrons, or block.
Trend Lab
Predict how atomic radius, ionization energy, and electronegativity change across the table, then reveal heat maps and graphs to check. See why with an atom model of core charge and shielding, rank elements (including the exceptions), and compare atoms with their ions.
Flame Lab
Flame-test seven metal salts (and learn why you clean the loop), see why atoms give off light with a hydrogen energy-level model, view element "barcodes" through a spectroscope, then identify unknowns, the elements in a star, and the salts in fireworks.
Bond Lab
See the difference between ionic and covalent bonds. Move electrons from metals to nonmetals to build ionic compounds and learn the ions involved, then share electrons to build molecules like water, carbon dioxide, and nitrogen gas.
Shape Lab
Spin 3D models to see VSEPR in action: balloons that spread into the five electron geometries, lone pairs that squeeze bond angles, ten molecules to predict from Lewis structures, and dipole arrows that show why shape decides polarity.
Force Lab
Find out what makes a molecule polar, watch London, dipole-dipole, and hydrogen-bonding forces in action, predict boiling points (and solve the water mystery), then race evaporating liquids, pile drops on a penny, and test "like dissolves like."
Surface Tension Lab
See why water acts like it has a skin, count drops on a penny, float a paper clip and sink it with soap, compare a meniscus in glass and plastic, watch capillary tubes, and rank five liquids by the forces between their particles.
Balance Lab
Balance chemical equations one coefficient at a time. Thirty levels from making water to burning gasoline, a two-minute rapid round, and a mode for checking any equation from your homework.
Mole Lab
Weigh out exactly one mole of salt, sugar, water, or gold, then build molar masses, convert between grams, moles, and particles on a clickable mole road map, and use mole ratios from balanced equations.
Formula Lab
Practice molar calculations, find percent composition with mass bars, heat a blue hydrate to find its percent water, work out empirical formulas (including a virtual magnesium-burning lab), and turn empirical formulas into molecular ones.
Reaction Lab
Discover limiting reactants with a s'mores recipe, watch molecules react in a flask, find the theoretical yield from grams, and calculate percent yield from four experiments, including one that seems to beat 100%.
Gas Lab
Watch gas particles race around a cylinder as you heat, squeeze, and pump in gas. Collect data for Boyle's, Charles's, and Gay-Lussac's laws, find absolute zero from a graph, and solve combined and ideal gas law problems, including a mystery gas.
Acid-Base Lab
Watch salt and sugar dissolve, test solutions with a conductivity bulb, then compare the Arrhenius, Brønsted-Lowry, and Lewis definitions by moving protons and electron pairs, labeling conjugate pairs, and sorting reactions.
Heat Lab
Feel the heat flow in hand warmers and cold packs, build ΔH from bond energies, race four materials to compare specific heats, identify a metal and measure a heat of neutralization in a coffee-cup calorimeter, and solve a Hess’s Law puzzle.
Rate Lab
Watch particles collide, then time antacid tablets and magnesium ribbon to test how surface area, concentration, and temperature change reaction speed. Explore activation energy and catalysts, find a rate law, and solve half-life problems.
pH Lab
Test ten household liquids with indicator paper and a pH meter, compare red cabbage, litmus, and phenolphthalein, explore why each pH step is ten times stronger, and run titrations to find an unknown acid concentration, including vinegar.
Free Energy Lab
Track energy with the laws of thermodynamics, watch a gas spread out to see entropy, melt ice with ΔG = ΔH − TΔS, explore the four sign cases, and predict when real reactions like the Haber process and cold packs are spontaneous.
Electro Lab
Watch zinc pull copper out of solution, assign oxidation numbers, balance redox equations with half-reactions, build batteries from six metals and find the best voltage, and calculate how much copper electroplating puts on a key.
Nuclear Lab
Build isotopes and check them against the band of stability, fire alpha, beta, and gamma radiation at paper, aluminum, and lead, balance nuclear equations, run a half-life simulator and carbon dating, control a fission chain reaction, and fuse hydrogen like the Sun.
Spectrum Lab
Explore wave properties and the speed of light, open fact sheets for all seven regions from radio to gamma, fire photons to see which radiation is ionizing, match everyday uses to each region, and calculate wavelength, frequency, and photon energy. Includes a research project organizer.
Biology
Photosynthesis, cellular respiration, and genetics.
Leaf Lab
Explore photosynthesis from sunlight to sugar: the leaf, the light reactions, and the Calvin cycle. Then run a virtual elodea bubble experiment, changing light, color, CO₂, and temperature, and compare photosynthesis with cellular respiration.
Mito Mission
Follow one glucose molecule through cellular respiration: glycolysis, fermentation, the Krebs cycle, and the electron transport chain. Track every carbon and every ATP, then build the whole map. Includes an Honors mode for the Krebs cycle intermediates.
Gene Lab
Fill in Punnett squares with Mendel's pea plants, grow a virtual generation to see probability in action, and explore incomplete dominance, blood types, color blindness, and two-trait crosses.
Math
Graphing, transformations, and systems of equations.
Graph Lab
A free graphing calculator. Graph several equations at once, drag sliders to see how a graph changes, find intercepts and intersections, make a table of values, and plot lab data.
For teachers and charter schools
Each lab opens with its learning outcomes and the NGSS or Common Core standards it supports, so you can see at a glance how it fits your course. Worksheets are free to download from each lab. Teacher answer keys are available on request.
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