Physical Properties of Metals and Non-metals

Making bronze requires copper and tin ores. Why do you think that the Bronze Age coincided with increased trade between groups of people?

Name one liquid metal.

There is a wood in the handle of iron pan. Why?

Explain the difference between metals and non-metals.

Name two metals which are found in free state.

What is the meaning of malleability and ductility of metals?

The property of making wire from metal is called _____. (malleable/ ductile)

_____ is the only metal found in the liquid state at room temperature.

_____ is the only non-metal conducts electricity.

With reference to the physical properties of metals and non-metals, state the following exception to a non-metal which conducts electricity.

All _____ are good conductors of heat and electricity.

Complete the following.
Graphite and _____ are lustrous non-metals.

_____ is a non-metal that conducts electricity.

For making cooking utensils generally metals are used. You must have seen tea kettle/cake dishes made of borosil glass. How do you explain this?

Silver is used to make good quality mirrors. Why?

Give one reason each for the following.

Graphite is used to make electrodes.

Write three differences between a metal and a non-metal. Give examples.

Of these, the most ductile metal is _____.

Which metal is used to make fans?

Copper is a best conductor of heat.