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WorksheetsMetals
Total questions: 10
Worksheet time: 5mins
A mixture of ores, sand, soil, clay, rock and other material
ores
metals
gangue
carbonates
It is a process of heating a sulfide ore to a high temperature in the presence of air.
roasting
flotation
preheating
refining
It is a process of applying heat to ore in order to extract a base metal. It is a form of extractive metallurgy.
smelting
refining
pretreatment
alloying
It a process that convert zinc sulfide to zinc and carbon monoxide.
reduction
smelting
roasting
refining
element that has the highest heat capacity
Lithium
sodium
beryllium
magnesium
Elements use for fireworks
barium
aluminum
sodium
strontium
Element used for spark plugs
gold
aluminum
barium
sodium
_______ is an admixture of metals, or a metal combined with one or more other elements.
corundum
aluminum
alloy
sapphire
Hematite, magnetite, bauxite, cassiterite
chloride
sulfide
sulfate
oxide
source of calcium, magnesium and sodium
underground
sea water
rutile
hermatite
