Is the Gold in My Jewelry Real? | Carolina.com

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Is the Gold in My Jewelry Real?

7 Items
Is the Gold in My Jewelry Real? is rated 4.1 out of 5 by 54.
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$4.20 - $36.00Qty Discount Available View Details

In this Science Buddies project, you will determine if the antimicrobial properties of metals are a good test for whether or not a piece of jewelry is made out of real gold. You can customize this kit to include the safe E. coli bacteria, nutrient broth, nutrient agar plates, and other supplies needed to complete this experiment.

 
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Overview

Have you ever wondered if a piece of jewelry is real gold or if it's just some ordinary metal alloy? It turns out that some metals have a unique property; even in small amounts, they can be toxic to some organisms, including algae, molds, fungi, and bacteria, although it often takes many hours to see an effect. Can this phenomena, called the oligodynamic effect be used to tell whether or not the gold or silver in a piece of jewelry is real? Do bacteria react differently to pure, plated, and non-gold jewelry? Find out for yourself in this unique treasure-testing science fair project!

View the full project, background information, procedures, and more at ScienceBuddies.com

 

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Ratings & Reviews

Rated 5 out of 5 by from Worked Perfectly! We departed from the norm and swabbed high traffic areas in the school as our wild card sampling. Dramatic results, clearly illustrating the importance of just washing your hands and cleaning regularly!
Date published: 2019-03-20
Rated 3 out of 5 by from Grew well... a titer would have been nice Bacteria grew as expected, however I was a little disappointed a titer was not included in the materials sent. Had to figure out on my own... but turned it into an educational opportunity, so all was fine in the end and there were indeed plenty of bacteria. We calculated about 3x 10^8 cfu/ml by the way...
Date published: 2019-03-04
Rated 3 out of 5 by from Nutrient Agar I purchased 3 packs of 10. Each pack had 1 or 2 broken tops; crushed where pieces of the plastic top were stuck in the agar. Fortunately I did not need more than were in great condition.
Date published: 2019-02-11
Rated 2 out of 5 by from Moldy Plates I'm glad that I only needed a few of the plates from this set because several of them had mold when they got to me, and seemed to pass it on to other plates the longer I waited to use them.
Date published: 2018-12-12
Rated 4 out of 5 by from Great customer service! Mold on several plates. Sara answered all of my questions, made great suggestions, and guided me through the process very skillfully. The plates arrived quickly; however, when we opened the lids, we found mold on three of the ten plates. Happy with everything except the mold.
Date published: 2018-11-14
Rated 5 out of 5 by from Arrived fresh The E-coli grew great! My child's project came off without a hitch.
Date published: 2018-11-08
Rated 1 out of 5 by from not sterile plates I bought these plates to save a few minutes before the lab. Unfortunately, the plates were contaminated and not sterile. 24/30 plates have growth on them.
Date published: 2018-10-27
Rated 5 out of 5 by from Prepared Nutrient Agar Plates worked Great! The prepared media plates arrived in a timely manner, very well packaged and every plate was sterile.
Date published: 2018-03-10
  • y_2019, m_4, d_19, h_20
  • bvseo_bulk, prod_bvrr, vn_bulk_2.0.12
  • cp_1, bvpage1
  • co_hasreviews, tv_5, tr_49
  • loc_en_US, sid_P_SB_FAM_GOLDREL, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_carolina
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getReviews, 4ms
  • REVIEWS, PRODUCT

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