Metals and Non Metals 2
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All material that are not metal are called?
Non-metals.
We get iron from?
Iron ore.
We get copper from?
Copper ore.
Why should we not make a cooking pot from plastic?
Because a plastic pot will melt from the heat of a stove.
What type of a rock contains minerals and metals?
Ore.
When metals can be beaten or hammered into shapes they are?
Malleable.
When a metal can be drawn into a wire it known to be?
Ductile.
Metals can conduct two things. What are they?
Heat and electricity.
What is an alloy?
An alloy is two or more metals mixed together.
When iron combines with ____ and ______ it forms _____ which is a _____________ in colour
Air, water, rust, reddish brown.
Which two metals are mostly used for jewellery? Give two reasons why?
Gold and silver. They are shiny, never go dull and are malleable.
Which metal is light and strong and used in aircraft construction?
Aluminium.
To prevent iron from rusting, which metal is used to coat the iron?
Zink.
Which alloy is made from iron and carbon?
Steel.
Stainless steel is made from three metals. What are they?
Iron, carbon and chromium
Which alloy shapes easily, looks pretty and is made from copper and zinc?
Brass.
Bronze is an alloy made from copper and _____
Tin.
R1 and R2 coins are copper coins plated with which metal?
Nickel.
10c and 20c coins are steel coins platted with which metal?
Bronze.
Are metals or non-metals brittle? Why?
Non-metals are brittle. They will break and shatter when dropped.
Non-metal made from plastic, rubber and fabrics are called?
Polymers.
Non-metals made from clay or sand, like glass and pots are called?
Ceramics
Which are better to conduct heat, metals or non-metals?
Metals.
Which non-metal is used to insulate wires?
Plastic.