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Think it through in the lab
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Chemistry Lab Predict acid or base, drop the indicator, and stack a density tower. 
Build-a-Bond Two atoms meet — do they trade, share, or pool electrons? 
Balance the Equation Set the coefficients so every atom is conserved on both sides. 
Paper Chromatography Split a "black" ink into its hidden colours. All activities
Hands-on lab
Chemistry Lab pH Indicator Lab, Density Tower, and Titration — you predict first, then watch what really happens. Build-a-Bond Predict an ionic, covalent, metallic, or hydrogen bond — then watch the electrons transfer, share, or flow. Build the Atom Fill an element’s electron shells with the 2-8-8 rule, then read the outer shell — the rung under bonding. Balance the Equation Set the coefficients until the atoms match on both sides — a balance scale proves they are conserved. Mole Ratio Turn a balanced equation into a recipe — predict how many moles of product a given amount of reactant makes. Limiting Reactant One reactant runs out first and caps the product. Weigh both supplies against the coefficients. Percent Yield Real reactions rarely hit 100% — predict the percent yield from what you actually got vs the most possible. Paper Chromatography Predict which pigment climbs farthest, then check — the strip splits a "black" ink into its hidden colours.
Practice & play
Mixed Practice A short round across the kits you have played — brought back to make it stick. ChemQuest Sprint Race your OWN best on what you already know. Timer optional, no penalty for a miss. Trick Questions Brain-teasers with a twist — spot why the obvious answer is a trap. Teach the Cast Teach a reaction to a cast member still learning it — teaching makes it stick. Reaction Duel 2–4 players take turns on one device — same questions, highest first-try score wins. Lab Expedition A progression trail through every kit — clear each stop of real practice, then move on. Progress Your levels, days active, and how each skill area is coming along — saved on this device. Progress report For grown-ups — a private on-device snapshot mapped to the skill areas. Export a CSV or print.
Concept Kits — 16 kits from "what is matter?" to advanced synthesis
Kit 1: Properties of Matter Matter & Its States · grades 4-5 · 25 questions Kit 2: Atoms & Elements Atoms & Molecules · grades 5-6 · 25 questions Kit 3: Periodic Table Patterns The Periodic Table · grades 6-7 · 25 questions Kit 4: Chemical Reactions & Equations Chemical Reactions · grades 6-7 · 25 questions Kit 5: Mixtures, Solutions & Separation Mixtures & Solutions · grades 5-6 · 25 questions Kit 6: States of Matter & Phase Changes Matter & Its States · grades 5-6 · 25 questions Kit 7: Acids, Bases & pH Acids, Bases & pH · grades 6-7 · 25 questions Kit 8: Conservation of Mass in Reactions Chemical Reactions · grades 6-7 · 25 questions Kit 9: Energy in Chemical Reactions Chemical Reactions · grades 7-8 · 25 questions Kit 10: Molecular Structure & Bonding Atoms & Molecules · grades 7-8 · 25 questions Kit 11: Organic Chemistry Basics Atoms & Molecules · grades 7-8 · 25 questions Kit 12: Environmental Chemistry Reasoning & Synthesis · grades 7-8 · 25 questions Kit 13: Cross-Topic Connections Reasoning & Synthesis · grades 5-6 · 25 questions Kit 14: Real-World Applications Reasoning & Synthesis · grades 6-7 · 25 questions Kit 15: Misconceptions & Reasoning Reasoning & Synthesis · grades 6-7 · 25 questions Kit 16: Advanced Synthesis Reasoning & Synthesis · grades 7-8 · 25 questions
More ways to play
😄 Brain break
Meet the cast — the characters who teach this
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Hydra Hydrogen (H) — lightweight, ubiquitous, always paired up; buddy-system enthusiast -
Carbo Carbon (C) — connects to anything; the social atom; backbone of life -
Oxy Oxygen (O) — eager bonder; electronegative; the hungry grabber -
Nitra Nitrogen (N) — triple-bond loyal; slow-to-warm; locks in deeply once bonded -
Sodi Sodium (Na) — generous, impulsive; always giving away electrons -
Chlora Chlorine (Cl) — sharp, focused; the collector who finishes what Sodi starts -
Helio Helium (He) — noble gas; peaceful, floaty, complete; the contented onlooker -
Sulfa Sulfur (S) — earthy, dramatic; the stinky uncle of volcanoes and proteins -
Phossa Phosphorus (P) — energetic, restless; the spark of ATP and matches -
Magna Magnesium (Mg) — bold, ceremonial; burns bright white; chlorophyll core -
Silica Silicon (Si) — patient, geometric; the architect who builds quietly -
Alumi Aluminum (Al) — practical, modest; the workhorse of cans and foil -
Tugger Ionic bond -
Sharer Covalent bond -
Streamer Metallic bond -
Whisperer Hydrogen bond
Ensemble stories — the cast together
What next? Pick a door
- More like this IllusionForge What is your eye really seeing? FlightForge Which paper plane will fly farthest? RiverForge Where will the rainwater go?
- A bit harder MachineForge How much easier does this machine make it? StowForge How would you fold it to fit? ErrataQuest Which clue broke the old idea?
- Something different WitQuest Can your wits beat the villain? DoodleForge What will this little loop draw? RiffQuest Can you play that riff back?