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Testing for the Chemical Properties of Metals
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Questions

All the metals used in the experiments are elements. What is an element?

Make lists of possible uses of the these five metals bearing in mind the properties which we have observed. In each case state which property is relevant to the use you are describing.

What is an alloy?

 

Cu

Information about Copper from the Visual Chemistry Section (opens in a new tab or window)

Fe

Information about Iron from the Visual Chemistry Section (opens in a new tab or window)

Zn

Information about Zinc from the Visual Chemistry Section (opens in a new tab or window)

Pb

Information about Lead from the Visual Chemistry Section (opens in a new tab or window)

Al

Information about Aluminium from the Visual Chemistry Section (opens in a new tab or window)

 

PHYSICAL SCIENCE

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A Closer Look at Metals

Testing for the Physical Properties of Metals

1. Identify the pieces of metal and then complete the table below.

 

Metal

Chemical Symbol

Magnetic?
(yes/no)

Colour

Copper

 

 

 

Iron

 

 

 

Zinc

 

 

 

Lead

 

 

 

Aluminium

 

 

 

 

2. Compare the pieces of metal for the following properties: a) strength, b) density and c) hardness.

 

Strength

Density

Hardness

Strongest

 

 

 

 

 

 

 

Weakest

 

Most dense

 

 

 

 

 

 

 

Least dense

 

Hardess

 

 

 

 

 

 

 

Softess

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3. Conduction of Electricity

Which of the metals conduct electricity? Can you detect any difference between how well they conduct electricity?

 

4. Compare the thermal conductivities of the metals.

Do not do this experiment with lead.

 

Best conductor of heat

 

 

 

 

 

Worst conductor of heat

 

 

 

 

 

Describe clearly how you compared the thermal conductivities of the metals. Expain why we did not do the experiment with lead.

 

 

 

 

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