Page 134 - Science Class 6 Times Publication

Activity 12.4

To test the strength of a metal and non-metal

Materials required:
An iron rod and a wooden stick of similar thickness
Procedure

1. Take an iron rod and hold it by its ends. Then try to break it.

2. Similarly, try to break the wooden stick.

Observation:

Which one breaks easily?

You cannot break the iron rod but you can break the wooden stick
easily.

Conclusion:
Iron is a metal and is strong. So, we cannot break it.
Lustre

Metals are lustrous. It means that they have a property of shining.
The shining property of metals is known as lustre. For example, gold
shines in its yellow colour, silver shines in its white colour, etc

Activity 12.5

Observe the lustre of different materials which are made of metals.
You can use knife, ornaments, steel utensils, etc to observe their
lustre.

Metals are sonorous

Metals produce a particular sound when hit by a hard object. A bell
produces sound due to the sonorous property of metal.

Times' Crucial Science and Environment 130 Book 6