Saturday, 15 December 2007

METALS

1) COOPER:

- Colour: red.

- Characteristics:
- Malleable.
- Good electricity conductor.

- Uses:
- Wires that carry electricity.
- Pipes.
- Decoration.

2) SILVER:

- Colour: white.

- Characteristics: It’s the best electricity conductor.

- Uses:
- Jewellery.
- Electrodes for electrolysis.

3) GOLD:

- Colour: yelow.

- Characteristics:
- Heavy.
- Malleable.

- Uses:
- Jewellery.
- Ornaments.

4) PLATINUM:

- Colour: silver white.

- Characteristics:
- Very heavy.
- Hard/ tough.

- Uses:
- Jewellery.
- Electrodes.


5) MERCURY:

- Colour: silver white.

- Characteristics:
- A lot of metals are dissolved in it.
- Toxic.

- Uses: It was used to make thermometers, barometers, etc.

6) ZINC:

- Colour: bluish-white.

- Characteristics: easily broken/fragile.

- Uses:

- To make galvanized iron.
- Cans, jerry cans...
- An alloy of cooper and zinc in brass.

7) TIN:

- Colour: white.

- Characteristics: soft and malleable.

- Uses:
- Soldering.
- To make tinplates.
- Alloys (bronze).


8) LEAD:

- Colour: grey.

- Charasteristics: It melts easily.

- Uses:
- Welding.
- To make bullets, cannon balls, pellets,...


9) ALUMINIUM:

- Colour: silver white.

- Charasteristics: light and malleable.

- Uses:
- To make planes and other vehicles.
- Utensils.


10) URANIUM:

- Colour: dark dun or black with yellow or green spots.

- Characteristics:
- Heavy.
- Radioactive.

- Uses: nuclear energy.

11) IRON:

- Colour: grey (mild iron).

- Characteristics: When it’s outdoors it goes rusty quickly.

- Uses:
- Building materials.
- Boilermaking, etc.

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