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Illusion Lab Predict what a classic illusion is really doing — Müller-Lyer, Ponzo, café wall — then reveal the measurement. 
Trick Science Drill See a magic trick and pick the principle that makes it work — misdirection, persistence of vision, and more. 
Lens Lab Predict the image a converging lens forms — real or virtual, upright or upside-down — then reveal the rays. 
IllusionForge Journey A path through every kit — clear each stop of real practice, then move on. All activities
Experiment with perception
Illusion Lab Müller-Lyer, Ponzo, Ebbinghaus, café wall, Hermann grid, Kanizsa, Penrose — predict, then reveal why your brain is fooled. Trick Science Drill Pick the scientific principle behind a magic trick or real-world illusion. Refraction Bench Predict how a ray bends from air into water or glass — Snell’s law, and where total internal reflection traps light. Lens Lab Cross the focal length and predict the image — see why a camera, projector, and magnifying glass differ. Teach the Cast Teach a perception idea to a cast member still learning it — teaching makes it stick.
Practice & play
Mixed Practice A short round across the kits you have played — brought back to make it stick. IllusionForge 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. IllusionForge Duel 2–4 players take turns on one device — same questions, highest first-try score wins. Or open an online room. 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 light & illusions to cognitive psychology
Kit 1: Light, Refraction, and Optics The Physics of Tricks · grades 4-5 · 25 questions Kit 2: Persistence of Vision and Motion Illusions Optical & Sensory Illusions · grades 4-5 · 25 questions Kit 3: Force Vectors and Center of Gravity The Physics of Tricks · grades 5-6 · 25 questions Kit 4: Classic Optical Illusions Optical & Sensory Illusions · grades 5-6 · 25 questions Kit 5: Change Blindness and Inattentional Blindness Mind, Attention & Magic · grades 6-7 · 25 questions Kit 6: Magic Trick Science: Physics and Psychology Mind, Attention & Magic · grades 6-7 · 25 questions Kit 7: Performance Planning and Misdirection Mind, Attention & Magic · grades 7-8 · 25 questions Kit 8: Cognitive Psychology Principles Mind, Attention & Magic · grades 7-8 · 25 questions Kit 9: Impossible Figures And Paradox Optical & Sensory Illusions · grades 5-6 · 25 questions Kit 10: Color And Brightness Illusions Optical & Sensory Illusions · grades 6-7 · 25 questions Kit 11: Auditory Illusions Optical & Sensory Illusions · grades 6-7 · 25 questions Kit 12: Taste Smell And Multisensory Illusions Optical & Sensory Illusions · grades 7-8 · 25 questions Kit 13: Cross Topic Connections Real World & Synthesis · grades 5-6 · 25 questions Kit 14: Real World Illusions In Medicine Safety Real World & Synthesis · grades 6-7 · 25 questions Kit 15: Misconceptions And Reasoning Real World & Synthesis · grades 6-7 · 25 questions Kit 16: Advanced Synthesis Real World & Synthesis · grades 7-8 · 25 questions
More ways to play
😄 Brain break
Meet the cast — the characters who teach this
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Skim Attention; inattentional and change blindness -
Vanish The blind spot and perceptual filling-in -
Fringe Color constancy / simultaneous contrast; context changes what you see -
Fade The afterimage / persistence-of-vision -
Teeter Ambiguous / bistable figures; figure-ground reversal -
Notch The impossible figure -
Stack The perspective trap -
Loop The perceptual loop -
Notion Pareidolia; the brain finds faces and patterns that aren't there -
Cue The auditory illusion
Ensemble stories — the cast together
What next? Pick a door
- More like this HeatForge How does this heat travel? AweForge How does this impossible thing work? ScienceForge Is this a fair test?
- A bit harder NexusForge Where will this nudge ripple to? HitchForge Which knot holds when you pull? BackstageQuest What happens behind the museum glass?
- Something different LeapTale How far can one hop-chain take you? MangaForge Which shot fits this panel? SoundSphere Which sound masks the noise?