MyLeoNes Advanced Science — question everything, test what happens

Every experiment makes you commit to a prediction before it shows you anything: question, hypothesis, experiment, observation, explanation, real world. Interactive simulations of buoyancy, gravity, molecules and pendulums — with a written version for devices without 3D, a real source for every claim, and safety notes where they matter. Ages 4–6, 7–10, 11–13 and 14–17, in six languages.

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