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When I was in high school I had an Edmund Scientific kit that came with a baggie of uranium ore powder and some radium paint for particle sources. Sadly, they don’t sell that any more.

When I was in middle school I believe I bought a pretty extensive chemistry set secondhand. Various small bottles of poisonous chemicals, test strips, and all sorts of glass. Sadly I see nothing comparable out there today. I think the strongest chemical in today's kits might be vinegar.

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