DT topic 4

• ferrous metals contain the element iron, also know as ferrite (Fe)
• copper is used to make electrical wiring because it conducts electricity well
• aluminium is lightweight so its good for making aeroplanes
• alloy- a metal made by combining two or more metals
• stainless steel - an alloy containing chromium and nickel
• bronze - an alloy containing copper and tin
• alloys enhance working properties and appearance