Mixed+up+metals

9E Building for the future

Mixed up metals
//n.b. this is a relatively short lesson.//

Recall that an alloy is a mixture of metals, or of metals and carbon. Explain how the particle model can help us to understand the properties of alloys.
 * Outcomes (what you will be able to do by the end of this lesson) **


 * Starter **
 * Review homework and completed work from last lesson


 * Activities **


 * 1) Read through p60-1 of Exploring Science 9 and answer Q1-4.
 * 2) How is an alloy's structure related to it's properties and use? Complete [[file:ES9_CHAP_Eb10.pdf|Useful alloys]] to find out how.
 * 3) Extension: Analyse the data on [[file:ES9_Eb061_02msu.xls|Different types of steel]]. How do the different mixtures affect it's properties and use? Answer the questions in your exercise book and print-off the table of properties to support your answers.

Review completed classwork / key term quiz
 * Summary **

Download complete the gapfill on, print-off and stick into your exercise book. You can copy and complete if you have a problem printing.
 * Homework **** activity options **


 * Useful links **

Learn about how alloys can be useful in jewellery.

media type="file" key="ES8_Gd100_13vco.flv" width="640" height="480"