It really works ! I made the experiment with the potato and we can ear the buzzer, see the light in the Led and watch what time is it on the tiny clock. To my mind, there is not enough experiments, and all the experiments proposed are all the same: you make a battery with a redox reaction and you try ... Read more
All the experiments runs and turns as promised, good even for "old boys" and for kids.
I guess it may open mind of children to science.
The buzz, LED signs well, which makes the demo very reliable Too much low quality plastic and a paper cup I would suggest to make a better quality lab with ... Read more
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