This activity explains ‘Malleability’, a physical property of metals.
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Aim of the activity
To observe the malleability of different metals.
Materials Required
1. Small pieces of metals – iron, zinc, lead and copper
2. Hammer
3. Block of iron
Procedure
We take a piece of iron sample and place it on a block of iron. Now we strike it 4
to 5 times with hammer and observe the changes in shape. Now we repeat the same process with other sample of metal pieces and observe the change in shape.
Observation
|
Metal |
Hammering |
Observation |
|
Iron |
Slight change in shape |
malleable |
|
Zinc |
Break down |
Brittle |
|
Lead |
Becomes |
Soft and malleable |
|
Copper |
Flattened |
Malleable |
Explanation
When metals like iron, copper and lead are beaten with hammer, they are converted
into sheets. This property of metals is known as ‘malleability’. Zinc may break down on hammering so it is not malleable.
Conclusion
This activity demonstrates the malleability of metals which means metals can be beaten into sheets.
Frequently Asked Questions
1. What is malleability?
Answer
Metals can be beaten into thin sheets, this property of metals is known as malleability.
2. Which metal is the most malleable in this activity?
Answer
Copper
3. Which metal is the most malleable of all metals?
Answer
Gold
4. What happened to zinc when hammered?
Answer
Zinc become brittle and break down.
5. Why is iron difficult to flatten with hammer?
Answer
Iron is a hard metal and needs great force to change shape.
All Activities Chapter 3 Metals and Non-Metals
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