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C1.3 Glossary
Metals and Their Uses Glossary
| Term | Definition |
|---|---|
| What is an alloy? | A mixture of metals (and sometimes non-metals) e.g. Brass is a mixture of copper and zinc. |
| What is brass? | An alloy of copper and zinc. |
| Describe the properties of aluminium and what it is use for. | A low density, corrosion resistant metal use in many alloys, including those used in the aircraft industry. |
| What is bioleaching? | The process of extracting metals from low grade ores using micro-organisms. |
| What is a blast furnace used for? | The blast furnace is the huge reaction vessel used in industry to remove iron from it’s ore. |
| What is carbon steel? | Alloy of iron containing small, controlled amounts, of carbon. |
| What is cast iron? | The impure iron taken directly from the blast furnace. |
| What is a copper rich ore? | A rock that contains a high proportion of a copper compound. |
| What is a high-alloy steel? | An expensive alloy of iron mixed with relatively high proportions of other metals e.g. stainless steel which contains nickel and chromium along with the iron. |
| What is a low-alloy steel? | An alloy of iron containing small amounts (1-5%) of other metals. |
| What is an ore? | A rock which contains enough metal to make it economically viable to extract the metal. |
| What is oxidation? | A reaction when oxygen is added to a substance (or electrons are lost) |
| What is phytomining? | The process of extracting metals from low grade ores using plants. |
| What is the reactivity series? | A list of elements in order of their reactivity. The most reactive element is put at the top of the list. |
| What is the process by which one element takes the place of another, less reactive element? | Displacment/Displace. |
| What is meant by “displace”? | When one element takes the place of another in a compound. For example iron + copper sulphate = iron sulphate + copper. |
| What is reduction? | A reaction in which oxygen is removed (or electrons gained). |
| What is a shape metal alloy? | A mixture of metals which responds to changes in temperature? |
| What is smelting? | Heating a metal ore in order to extract its metal. |
| What is stainless steel? | A chromium/ nickel alloy of iron which does not rust. |
| What is steel? | An alloy of iron with small amounts of carbon or other metals, such as nickel or chromium, added. |
| What is titanium? | A shiny, corrosion resistant, metal used to make alloys. |
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ChosenHill
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