GCSE Chemistry – Matching Pairs
Extracting Metals
Observation
Explanation
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
Gold can be found in it’s native, uncombined form.
Copper can be extracted from its ore by carbon.
Pure iron is not used to make bridges.
Aluminium is expensive.
Gold is often alloyed with copper.
Sodium cannot be extracted using carbon.
Steel is an alloy.
Some iron minerals are not used as ores.
Steel is stronger than iron.
Metals are often recycled.
Gold is not usually used to ake electrical wiring.
Titanium is used in jet engines.
Scientists are looking for new ways to extract copper.
Aluminium does not corrode.
Stainless steel resists corrosion.
Rocket resources.co.uk
It keeps its strength at high temperature.
It is above carbon in the reactivity series.
It has chromium added.
It rapidly reacts to form an oxide.
High grade ores are running out.
It is very expensive.
It is too soft.
It saves energy.
It is below carbon in the reactivity series.
It is more hard wearing.
Its extraction needs a lot of energy.
It is unreactive
It is a mixture of elements.
The metal is not concentrated enough.
It is alloyed with carbon
Answers
Observation
Explanation
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
Gold can be found in it’s native, uncombined form.
Copper can be extracted from its ore by carbon.
Pure iron is not used to make bridges.
Aluminium is expensive.
Gold is often alloyed with copper.
Sodium cannot be extracted using carbon.
Steel is an alloy.
Some iron minerals are not used as ores.
Steel is stronger than iron.
Metals are often recycled.
Gold is not usually used to ake electrical wiring.
Titanium is used in jet engines.
Scientists are looking for new ways to extract copper.
Aluminium does not corrode.
Stainless steel resists corrosion.
Rocket resources.co.uk
It keeps its strength at high temperature.
12
It is above carbon in the reactivity series.
6
It has chromium added. 15
It rapidly reacts to form an oxide. 14
High grade ores are running out. 13
It is very expensive. 11
It is too soft.
3
It saves energy.
10
It is below carbon in the reactivity series. 2
It is more hard wearing. 5
Its extraction needs a lot of energy. 5
It is unreactive 1
It is a mixture of elements. 7
The metal is not concentrated enough.
It is alloyed with carbon.
9
8