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Learning
Small projects that help kids learn by playing
Physics · Middle school
Circuit Lab
An interactive helper for electric circuits and Ohm's law: simulations, a virtual multimeter, a circuit designer and step-by-step lessons with quizzes.
Biology · Middle school
DNA — Interactive lab
Fifteen chapters on DNA, with a 3D double-helix model you can spin in your hand: structure and bases, chromosomes, replication, genes, Mendel’s laws, inheritance — and a quiz at the end.