"Tin hedgehog" experiment from the "Tin" set

Perform this awesome experiment at home with MEL Science: https://melscience.com/en/experiments/tin-hedgehog/

Safety
*Put on protective gloves and eyewear.
*Conduct the experiment on the tray.

Disposal
Dispose of solid waste together with household garbage. Pour solutions down the sink. Wash with an excess of water.

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