Copper is itself an element, which appears in nature as a pure metal. It was in fact the first metal to be used by humans, as early as 8,000 BCE, and was essential in ushering in the Bronze Age, when humans first created bronze by alloying it with tin, which is another metal. It has a wide variety of practical uses, such as as a conductor of electricity and heat, and as a building material; although copper is reddish-orange, the persistent effects of time can cause it to oxidize, which produces the deep green color you see on the Statue of Liberty, which is itself made out of copper. Copper is also essential for living beings; a healthy human should have about 0.1 grams of copper in their system.
This particular specimen of copper has been taken directly from the Earth in its natural, sculpted state. Each piece is practically a work of art unto itself, without any human intervention. Each piece is totally unique and utterly fascinating, and makes a great gift or stocking stuffer for the geology fan in your family.
Box of 100 First Touch powder-free LARGE Nitrile exam gloves.
These goggles meet the ANSI Z87.1, 2010 High Impact standards.
Box of 100 X-LARGE nitrile exam gloves.
Durable, anti-fog safety glasses that fit comfortably on any head size.
These large, powder-free, 5mil Nitrile Exam Gloves are designed and manufactured for superior comfort and protection.
Professional Powder-Free Textured Nitrile Exam Gloves with Aloe, Size Large
This advanced physics kit is perfect for older children already versed in physics knowledge!
This science kit is an essential introduction to physics knowledge!
Over 300 electronics projects in this kit will keep the young scientist busy!
This kit includes several different projects that demonstrate the power of magnets!
A combination of three of our great discovery toys, all in one package!
This glass Erlenmeyer mug makes an excellent gift!
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