Eleven science friends are solving tasks about electricity. They need to be quick figuring out which switch turns on which filament lamp. Then they need to become masters of filament lamps themselves and in the final task, they need to ...See moreEleven science friends are solving tasks about electricity. They need to be quick figuring out which switch turns on which filament lamp. Then they need to become masters of filament lamps themselves and in the final task, they need to give life to a model train through electricity.
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