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Science World

Each one is a five-minute mystery. Start with any of them.

Matching moon-garden seedlings growing with and without light

Level 15 · CoreLiving Things · Plant needs and evidenceThe Moon-Garden MysteryTwo identical seedlings get the same care, but only one gets light.Written by AI · checked twiceStart lesson

A moon laboratory with plant, magnet, and chemistry experiments

Level 16 · CoreLiving Things · Light for plant growthThe Windowsill RaceLumi says light helps plants grow, and then picks the plant in the dark anyway.Written by AI · checked twiceStart lesson

A rover testing a steel paperclip and aluminium foil with a magnet

Level 17 · Warm-upMaterials & Matter · Properties of materialsThe Shiny-Object Magnet TrapA steel paperclip and some foil are both shiny. Does that mean a magnet picks up both?Written by AI · checked twiceStart lesson

A sunny puddle shrinking inside its chalk outline

Level 18 · Warm-upMaterials & Matter · Changes of stateThe Vanishing PuddleA puddle vanishes in the sun without flowing anywhere. Lumi says the water stopped existing.Written by AI · checked twiceStart lesson

A child comparing Moon phases with a Sun and Moon model

Level 19 · CoreSpace · Models of the MoonThe Moon-Phase Shadow FileThe Moon changes shape across the month, and Lumi blames Earth's shadow.Written by AI · checked twiceStart lesson

Ice melting inside a sealed container on a balance scale

Level 20 · CoreMaterials & Matter · Conservation of matterThe Ice-Cube Mass MysteryIce melts inside a sealed box, and Lumi says some of it disappeared.Written by AI · checked twiceStart lesson

Two children launching different paper planes from different heights

Level 21 · CoreExperiments · Planning a fair testThe Paper-Plane ChampionshipTwo paper planes race, but one is thrown by a different person, standing on a chair.Written by AI · checked twiceStart lesson

Energy moving from grass to a rabbit and then to a fox

Level 22 · CoreLiving Things · Energy in ecosystemsThe Backwards Food ChainGrass, rabbit, fox. Lumi has the right animals but reads every arrow backwards.Written by AI · checked twiceStart lesson