Science Minute – Gold Pennies
If you ever find a “gold” penny in your pocket of change, don’t quit your day job. In today’s Science Minute, Steve Spangler reveals the reason why those gold pennies find their way into circulation about this time every year thanks to Leprechauns or some clever chemistry students.
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You can replace sodium hydroxide with zinc sulfate, which is much safer.
Is there a way to do this with quarters?
Does the gold fade at all or do they stay golden for awhile?
It's been years.
this channel is back ??
Does bronze work? (aka tin)
1.48 "sometimes kids will put these into circulation" … I can't help but imagine Steve putting a few of these into circulation as well 😅🤫
Good to see you back after almost 4 years, I thought I was seeing a mirage when your test tube video popped up in my feed