You are provided with the following materials:

An iron nail, an aluminium wire, a pencil lead, a copper wire and the carbon rod of a dry cell. 

Beat them hard using a hammer. Which of them can be flattened? What is your conclusion?

Find out the metal mentioned in the following case.

Which metal is used in the storage batteries of vehicles?

Find out the metal mentioned in the following case.

Most of the metals are solids. Which metal exists as a liquid even at low temperatures?

Find out the metal mentioned in the following case.

Iron articles are coated with other metals to protect them from corrosion. Which are the two metals usually used for this purpose?

Find out the metal mentioned in the following case.

Metals have high density. Which is the densest metal?