Silvery White METAL , shiny, light, very hard and strong used in the medical sector
Titanium
The resistance which metals offer to being scratched by others.
Hardness
SHAPPING TECNIQUE: Metal is passed througn a series of rollers that compress it, reduce its thickness and increas its lenght
Rolling
Useful part of the mineral
Ore
Ultra light metal
Magnesium
It is the gradual destruction (rust) of metals by oxigen reaction.
Corrosion
Copper + zinc
Brass
A metal made by combining two or more metals.
Alloy
SHAPPING TECNIQUE: A sheet of metal is hit with a punch to make the required shape ina mould.
Punching
Metal are ____________ sound conductors.
Good
What type of union do screws and nuts generate?
Temporary
SHAPPING TECHNIQUES: The heated metal is pushed throgh a hole by a piston using compression.
Extrusion
Metal not solid at room temperature
Mercury
The group of industries involved in mining and transforming metallic minerals.
Metallurgy
Metals are ___________ electrical conductors.
Good
SHAPPING TECHNIQUE: The metal is heated in a furnace. The liquid metal is poured into the mould. It is left to cool down. The piece is removed from the mould.
Casting
Copper + Tin
Bronze
Tool used to deform metals by hitting the handle with a hammer.
Chisel
Property of metals in which metals can separate into sheets
Malleability
What type of union do rivets generate? Temporary or permanent.
Permanent
TRUE or FALSE. Many minerals from the Earth ́s surface contain iron. The most importan tones are magnetite and siderite.
True
Silvery White METAL, highly resistant to corrosión; very soft; low density; high malleability and ductility, good at conducting electricity and heat. Used in food packaging
Aluminium
Saw used to cut metals
Hacksaw
Reddish METAL, very shiny, soft, good electrical and termal conductor, maleable and ductile, rust easily.
Copper
Property of metals: react with oxygen in the air to produce metal oxides.
Oxidation
Where are metals obtained from?
Minerals
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