learn the properties of materials give one example for each property
Answers
Explanation:
1. Lustre : Take copper vessels at your home. Scrub them with lemon and rinse with water. Observe the luster before and after cleaning. Light gets reflected from the cleaned or freshly cut surface of metal and metal looks the lustrous. Example - Copper, Gold.
2. Hardness : Generally metals are hard, not soft. Example - Sodium and potassium are soft and can be easily cut by a knife.
3. Ductility : When a metal is pulled through a hole it's wires is formed. This property of metal is called ductility. Example - Silver, Iron, Gold, Copper.
4. Malleability : Take a iron nail. Place it on a platform and keep on hammering it. After sometime you will see a thin sheet forming. This property is called malleability of metals. Example - Iron, Gold, Copper.
5. Conduction of Heat : Metals are good conductors of heat. Example - Silver, Copper, Aluminium.
6. Conduction of Electricity : metals are good conductors of electricity lead is an exception which is neither a good conductor of heat not a good conductor of electricity