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Q: What is the difference between a gold specimen and a gold nugget?
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How could the volume of a gold nugget be found using water and a graduated cylinder?

Fill the graduated cylinder half full (may be more or less depending on the actual situation) and drop in the gold nugget. Read the final volume mark and subtract the initial volume from the final volume. This difference in volume is the volume of the nugget. This is related to the principle of buoyancy and it is said to have had a colourful story behind its discovery. Read the Wikipedia article on 'Eureka (word)' to learn more.


What is the difference between gold and pirate?

Gold is an element with a pleasant yellow colour. Pyrites are a metallic sulphide, often yellow or golden coloured. And sometimes mistaken for gold. But gold is malleable, whereas pyrites is hard to scratch.


What are two main types of electron microscope's and how are they diff?

TEMs - Transmission Electron MicroscopesSEMs - Scanning Electron MicroscopesThe main difference in the two are that TEMs give a two dimensional image by having electrons penetrate through the specimen, where as SEMs give a three dimensional image by staining the specimen with a dense material, IE : Gold, and firing electrons at it and letting them bounce off.


Does a large piece of wood have a greater density than a small piece of wood?

The larger piece will probably have more mass than the smaller one. But if the wood is of the same type and "all things are equal" as regards moisture content, sap content, etc., the density of both pieces of wood will be the same. Density does not depend on the size of a sample. Density is mass per unit of volume. If a large gold nugget and a small gold nugget are compared, the larger nugget will have more mass, but both nuggets will have the same density.


What's the difference between the different types of gold?

The difference between the different types of gold is in the purity of the gold. The karat weight of gold is measured by a gold's purity, with 24 karat gold being pure gold. Therefore, 22 karat gold would have a purity of 22/24 or 91.7 percent, 18 karat gold would have a purity of 18/24 or 75 percent, 14 karat gold would have a purity of 14/24 or 50 percent and 10 karat gold would have a purity of 10/24 or 41.6 percent. As the purity of gold decreases, the alloy in the jewelry increases. Copper and silver are the most common alloys used when making gold jewelry and white gold is usually made with a nickel alloy. The higher karat weight a gold piece of jewelry has, the more valuable that piece of jewelry will be.