GCSE+GP+Unit+1+Lesson+25+-+Metals

toc = Introduction = You are going to look at the Aesthetic, functional & mechanical properties, applications, and advantages / disadvantages of the following metals for graphic products and commercial packaging: The basic elements of all metals are found naturally accruing within the earth. After they are extracted in the form of ore they are refined and processed in a variety of ways to produce usable materials. Metals are commonly available for manufacturing use in a wide range of forms and sizes, this range has become vast because unlike wood, metal **cannot** be easily converted from one size to another. Ferrous metals are metals that consist mostly of iron and small amounts of other elements. Ferrous metals are prone to rusting if exposed to moisture. Ferrous metals can also be picked up by a magnet. The rusting and magnetic properties in ferrous metals are both down due to the iron. Typical ferrous metals include mild steel, cast iron and steel.If you are struggling to remember what a ferrous metal is, remember your chemistry lessons - **Iron** is a metallic chemical element with the symbol **Fe** in Latin : **//ferrum.//** Range of ferrous metals include: **Mild Steel,** **Cast Iron,** **High carbon steel / Tool steel,** **Stainless steel,** **High speed steel.**
 * Ferrous - Steel
 * Non-Ferrous - Aluminium and Tin
 * Ferrous metals**
 * Iron**

Alloys are substances that contain two or more different metals and occasionally other elements. The metals are carefully chosen and mixed to achieve specific properties these include reducing the melting point making the alloy light weight, etc. Steel is of course an alloy of Iron and Carbon Non-ferrous metals are metals that do not have any iron in them at all. This means that Non-ferrous metals are not attracted to a magnet and they also do not rust in the same way when exposed to moisture. Typical Non-ferrous metals include copper, aluminium (coke cans), tin and zinc. = Task 1 = Print out and complete the two worksheet - All about Metal & Metals from Rocks = Task 2 = Using these work sheet continue your research and for each of the following metals: Steel, Aluminium and Tin create a Presentation / A3 sheet covering the following points: Use 2/3 visual examples to highlight your answers
 * Metal Alloys**
 * Steel**
 * Non-ferrous metals**
 * Aluminium**
 * Tin**
 * Extraction from the earth
 * Ore Processing
 * Mechanical properties
 * Aesthetics - colouring / printing / labelling
 * Applications as a graphic product
 * Recycling (What are the accepted recycling symbols for these materials?)
 * Advantages
 * Disadvantages

= Resources =
 * **@http://en.wikipedia.org/wiki/Iron**
 * **@http://en.wikipedia.org/wiki/Aluminium**
 * **@http://en.wikipedia.org/wiki/Tin**
 * **@http://en.wikipedia.org/wiki/Alloy**