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Materials: Metals and Non-Metals
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14/04/2021 4:13 pm
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Give reasons for the following:
- Silver is used in making mirrors.
- Aluminium is used to make electrical wire.
- Iron is used in construction of bridges and houses.
- Graphite is used as an electrode in the dry cell.
- Iron sheets are galvanised before use.
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14/04/2021 4:14 pm
- Silver has the ability to reflect light, therefore, it is used for making mirrors.
- Aluminium is a good conductor of electricity, so, it is used for making electrical wires.
- Iron is a strong metal, therefore, it is mixed with concrete to make bridges and houses.
- Graphite is a good conductor of electricity, therefore, it is used as an electrode in dry cell.
- Iron sheets are galvanised before use so that they do not corrode.