Extreme Science: Penny Shine - NBC Right Now/KNDO/KNDU Tri-Cities, Yakima, WA |

Extreme Science

Extreme Science: Penny Shine

Posted:

Join us every Saturday morning for Extreme Science with Radical Rick. This week Rick shows us how to 'shine a penny' with science!

Here's what you need for this experiment:

  1. Several tarnished (dark) pennies
  2. Small plate
  3. Hot sauce or taco sauce
  4. Sink (to rinse pennies)
  5. Electrical tape (optional)
  6. Adult supervision

Procedure:

  1. Place your pennies on your plate.
  2. Pour some taco sauce over your pennies.
  3. Using your finger, gently rub the taco sauce into the penny. Do not lick your hands afterwards as the pennies are filthy and disgusting! Also, be careful if you have any small cuts in your fingers as the taco sauce may irritate it.
  4. Let the pennies sit for 2 – 3 minutes while you wash your hands.
  5. Rinse the pennies off and check out the difference!

What is going on?

There are actually several things that you can use to clean pennies such as lemon juice and salt, vinegar and salt or, your favorite taco sauce! If you took the ingredients of the taco sauce such as tomato paste, vinegar or salt and tried to clean the pennies separately, you wouldn't get them very clean. When salt is dissolved in the vinegar as it is in the taco sauce, the salt breaks down into sodium and chloride ions. The chloride ions will combine with the copper in the penny to remove the tarnish form its surface.

Try this:

  • Try covering half of a penny with some electrical tape prior to cleaning it with the taco sauce. Afterwards, when you remove the tape you can see how much tarnish was actually removed.
  • Try a mixture of vinegar and salt to clean some more pennies. Does this solution work any better than the taco sauce?
  • Try mixing a solution of lemon juice and salt to clean some pennies. How does this solution compare to your previous attempts?
  • Try using different brands of taco sauce. Is there any difference in how well each brand cleans the pennies?
  • Top Stories from KHQTop StoriesMore>>

  • PHOTOS: Hobo Spider season has arrived

    PHOTOS: Hobo Spider season has arrived

    Friday, August 29 2014 5:37 PM EDT2014-08-29 21:37:17 GMT
    KHQ.COM - Mid August is about the time that we start to see spiders come into our homes, particularly the hobo spider. August and September is mating season for the hobo and that means you may be seeing more funnel-like webs in and around your home. Males are on a mission to find a female which is why they are a lot more active at this time.More >>
    KHQ.COM - Mid August is about the time that we start to see spiders come into our homes, particularly the hobo spider. August and September is mating season for the hobo and that means you may be seeing more funnel-like webs in and around your home. Males are on a mission to find a female which is why they are a lot more active at this time.
    More >>
  • All WA, ID, MT, Albertsons stores affected by security breach

    All WA, ID, MT, Albertsons stores affected by security breach

    Friday, August 29 2014 4:37 PM EDT2014-08-29 20:37:49 GMT
    SPOKANE, Wash. - Earlier this month Albertsons announced a data breach affecting customers who shopped in their stores any time between June 22, 2014 and July 17, 2014. More >>
    SPOKANE, Wash. - Earlier this month Albertsons announced a data breach affecting customers who shopped in their stores any time between June 22, 2014 and July 17, 2014. Before Friday, it was unclear which stores were impacted, but fraud investigators with AB Acquisition LLC, the company Albertsons is using to provide complimentary consumer identity protection services to customers, says that the breach impacts all stores in Washington, Idaho, and Montana.More >>
  • Scam Phone Calls Continue; IRS Identifies Five Easy Ways to Spot Suspicious Calls

    Scam Phone Calls Continue; IRS Identifies Five Easy Ways to Spot Suspicious Calls

    Friday, August 29 2014 3:22 PM EDT2014-08-29 19:22:12 GMT
    WASHINGTON, D.C. - The following was sent out by the Internal Revenue Service:The Internal Revenue Service issued a consumer alert today providing taxpayers with additional tips to protect themselves from telephone scam artists calling and pretending to be with the IRS. More >>
    WASHINGTON, D.C. - The following was sent out by the Internal Revenue Service:The Internal Revenue Service issued a consumer alert today providing taxpayers with additional tips to protect themselves from telephone scam artists calling and pretending to be with the IRS. These callers may demand money or may say you have a refund due and try to trick you into sharing private information. More >>
Powered by WorldNow
All content © Copyright 2000 - 2014 WorldNow and KHQ. All Rights Reserved. For more information on this site, please read our Privacy Policy and Terms of Service.