Non-ferrous metals
Which non-ferrous metal has the element symbol (Zn)?
Zinc
Name one property of non-ferrous metals in general.
-good mechanical resitance
-thermal and electrical conductors
-resist oxidation
-easy to machine
Which non-ferrous metal is used in glass to toughen it and batteries?
Lead
Name one tool that cuts sheet metal.
Metal shears or tin snips
After the iron, coking coal and limestone have been in the furnace for a while, pig iron and _____ are created.
Slag
Which two non-ferrous metals come together to form brass?
Zinc and Copper
Name one property of copper.
-soft, reddish in colour and very shiny
-malleable and ductile
-resistant to corrosion
Which non-ferrous metal is used for electrical cables, pipes and telephone lines?
Copper (Cu)
True or false: the gangue (as opposed to the ore) is the most important part of a mineral?
False
What alloy is made of the following non-ferrous metals: tin and copper?
Bronze
Name one property of aluminium.
- High termal and electrical conductivity
- low density and low weight
What is one environmental effect of mining?
-damages the landscape
-water pollution
-production of gases that harm the environment and toxic waste
Name one tool that marks out metals?
Scriber, divider or punch
Which two additional elements are put into a furnace with iron to create pig iron?
coking coal and limestone
Which non-ferrous metal comes from cuprite and chalcopyrite?
Copper
Which non-ferrous metal is very soft and has a shiny white colour? This metal is very malleable and ductile and does not oxidise at room temperature.
Tin
True or false: The metal industry consumes a lot of energy?
True
Which tool bends and shapes metal?
Pliers
Which kind of iron has the most carbon? (pig iron, cast iron, steel or pure iron)
pig iron
Which non-ferrous metal comes from bauxite?
Aluminium (Al)
Which non-ferrous metal is plastic and malleable, has a high thermal conductivity and is very soft and heavy?
Lead (Pb)
Which non-ferrous metal is used for building roofs, baths and buckets?
Zinc (Zn)
Which tool has a fine-toothed blade and only cuts in the forward direction? This tool cuts wood and plastic.
Hacksaw
Where does ferrous metallurgy take place?
In very hot furnaces