All products are made from materials of one sort or another - or even several sorts combined to have special properties that are particular useful. For instance steel is a metal that has a range of qualities that include strength and ductility and this led to its use in making chain-mail armour in the Middle Ages. Why do you think chain-mail is not used today by modern combat troops around the world - it certainly seemed effective when it was first used - so why not now ?
Download the worksheet - the ‘Topic-Doc’ for this section and answer Question 1.
(Save the document with your name as a filename and then reopen it in Word)